Saturday
April 19, 2014

Search: Physics: Diameter of a nichrome wire

Number of results: 112,413

physics
As part of a class project you are given 0.900 g of nichrome and asked to fabricate a wire with uniform cross-section. You use up 95% of the nichrome and make a wire with a resistance of 0.840 Ω. The resistivity of nichrome is 1.00 10-6 Ω m and its density is 8.31 ...
Sunday, September 15, 2013 at 8:02pm by Justin

Physics: Diameter of a nichrome wire
If 49 m of nichrome wire is to have a resistance of 13.0 ohms at 20C, what diameter wire should be used? I've done this: (108e-8)(49)/10.0 ohms = 5.29e-6m^2 Then 5.29e-6m^2/pi then r = sqrt(1.68e-6m^2) and got .00129 = 1.29e-3 1.29mm r=2(1.29mm) = 2.58mm But this is wrong. ...
Thursday, September 9, 2010 at 5:24pm by Sar

Physics
Calculate the resistance per unit length of a nichrome wire, which has a radius of 0.436 mm. The resistivity of nichrome is 1.510−6 Ωm. Answer in units of Ω/m If a potential difference of 20 V is maintained across a 3.7 m length of the nichrome wire, what is...
Friday, February 24, 2012 at 9:22pm by Kudo

Physics: Diameter of a nichrome wire
Where did the 13 ohms go?
Thursday, September 9, 2010 at 5:24pm by bobpursley

physics
A toaster uses a Nichrome heating wire. When the toaster is turned on at 20C, the initial current is 1.50 A. A few seconds later, the toaster warms up and the current has a value of 1.22 A. The average temperature coefficient of resistivity for Nichrome wire is 4.5 10-4 (C)-...
Wednesday, January 30, 2008 at 9:16pm by rick

physics
A toaster uses a Nichrome heating wire. When the toaster is turned on at 20C, the initial current is 1.50 A. A few seconds later, the toaster warms up and the current has a value of 1.20 A. The average temperature coefficient of resistivity for Nichrome wire is 4.5 10-4 (C)-...
Sunday, February 28, 2010 at 6:34pm by Anonymous

Physics: Diameter of a nichrome wire
Ooo. Gosh, I must have just been looking at the wrong number or something. I feel silly now.
Thursday, September 9, 2010 at 5:24pm by Sar

Physics: Diameter of a nichrome wire
2.27mm is the new answer I got, which is correct. Thanks for pointing that out, Bob. I was going insane trying to figure this out.
Thursday, September 9, 2010 at 5:24pm by Sar

Physics
The heating element of a simple heater consists of a 2.2m--long, 0.70mm--diameter nichrome wire. When plugged into a 120 V outlet, the heater draws 7.5 A of current when hot. I found that the wire's resistance when it was hot was 16 ohms. Now using this answer of 16 ohms ...
Friday, October 21, 2011 at 11:09pm by Kayla

Physics
You need to make a 100 microH inductor on a cylinder that is 5.0 cm long and 1.0 cm in diameter. You plan to wrap four layers of wire around the cylinder. What diameter wire should you use if the coils are tightly wound with no space between them? The wire diameter will be ...
Sunday, April 13, 2008 at 2:31pm by Jill

Physics
A nichrome wire has a radius of 0.50 mm and a resistivity of 1.5 10‑6 W‑m. What is the resistance per unit length of this wire?
Wednesday, February 23, 2011 at 4:34pm by Kevin

Physics
A nichrome wire has a radius of 0.50 mm and a resistivity of 1.5 10‑6 W‑m. What is the resistance per unit length of this wire?
Thursday, February 24, 2011 at 3:42pm by Anthony

Physics
A piece of Nichrome wire has a radius of 8.0 10-4 m. It is used in a laboratory to make a heater that dissipates 2.00 102 W of power when connected to a voltage source of 120 V. Ignoring the effect of temperature on resistance, estimate the necessary length of wire.
Friday, September 7, 2007 at 11:26am by Mary

physics
A total charge of 25 mC passes through a cross-sectional area of a nichrome wire in 10 s. What is the current in the wire? Choose one answer. a. 2.5 A b. 2.5 mA c. 25 mA d. 2.5 A
Tuesday, May 31, 2011 at 9:39pm by ashley --- HELP PLEASEE!!!

Physics
Look up or derive the frequencies of the standing waves of a length of wire, L, clamped at the ends and under tension. What are the similarities and differences between a vibrating string and a resonating pipe? Does the diameter of the wire matter? Does the diameter of the ...
Thursday, February 8, 2007 at 12:00pm by Krys

physics
Suppose that you wish to fabricate a uniform wire out of 0.900 g of copper. Assume the wire has a resistance R = 0.500 , and all of the copper is used. (a) What will be the length of the wire? (m) (b) What will be the diameter of the wire? (m)
Friday, September 17, 2010 at 10:10pm by lynette

Chemisty
Wire is often sold in pounds spools according to the wire guage number. That number refers to the diameter of the wire. How many meters are in 3-Ib spool of 12 gauge aluminum wire? A 12-guage wire has a diameter of 0.0808 in. Aluminum has a density of 2.70 g/cm^3. (V=3.14r^2L)
Thursday, January 19, 2012 at 10:59pm by love

physics
The magnetic field in a loudspeaker is 0.2 T. The wire consists of 308 turns wound on a 4.12 cm diameter cylindrical form. The resistance of the wire is 8.2 Ω. Find the force exerted on the wire when 15.8 V is placed across the wire. Answer in units of N
Thursday, March 3, 2011 at 8:43pm by Anonymous

college physics
A 4m long copper wire has a diameter of 2mm and carries a current of 10A. Determine the ff: a. current density in the wire b. electric field c. potential difference between the ends of the wire d. resistance of the wire
Monday, February 25, 2013 at 2:04am by Zell

University Physics
A hollow copper wire with an inner diameter of 0.60mm and an outer diameter of 1.8mm carries a current of 15A. What is the current density in the wire?
Friday, March 22, 2013 at 10:59pm by Wolf

physics
A wire of diameter 0.65mm and length 6.0m stretches 10mm when 5.5kg is hung from it. What is the Young's modulus for the wire and what is the effective spring constant for the stretching wire
Thursday, April 19, 2012 at 2:34pm by Kirk

Physics
A long horizontal wire carries a current of 48A . A second wire, made of 2.6mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15cm below(Figure 1) . Determine the magnitude of the current in the lower wire.
Monday, April 8, 2013 at 6:57pm by bud

physics
A long horizontal wire carries a current of 48A . A second wire, made of 2.6mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15cm below(Figure 1) . Determine the magnitude of the current in the lower wire.
Monday, April 8, 2013 at 9:44pm by bud

physics
A circular steel wire 2.00 m is to stretch no more than 0.25 cm when a tensile force of 400 N is applied to each end of wire. What minimum diameter is required for the wire?
Saturday, August 22, 2009 at 7:53pm by colleen

physics
i need to investigate nichrome wire and a globe and i need to state which is an ohmic conductor. what will my method be??
Sunday, August 12, 2012 at 4:23pm by gontse

Algebra
The electrical resistance of a wire varies directly as its length and inversely as the square of its diameter. a wire with length of 200 inches and a diameter of one- quarter of an inch has a resistance of 20 ohms. find the electrical resistance in a 500 inch wire withe the ...
Sunday, January 9, 2011 at 7:16pm by Mike Bedell

Physics
A silver wire and a platinum wire of the same length have the same resistance. What is the ratio of the diameter of the silver wire to that of the platinum wire. I did 10.6E-8/1.59E-8 but am not getting correct answer?
Friday, February 10, 2012 at 9:06am by jason

Physics
A weight of 40N was attached to the end of a wire during modulus experiment, if the length of the wire is 4m and the diameter is 0.44mm and the extension recorded is 0.30mm. calculate the stress and strain of the wire?. take[Pi=3.142
Saturday, January 22, 2011 at 4:42am by Ochuko

physics
A light rigid bar is suspended horizontally from two vertical wires, one of steel and one of brass. Each wire is 2.00m long. The diameter of the steel wire is 0.60mm and the length of the bar AB is 0.20m. When a mass of 10.0kg is suspended from the centre of AB the bar remains...
Saturday, March 27, 2010 at 10:50am by Edwin

physics
A light rigid bar is suspended horizontally from two vertical wires, one of steel and one of brass. Each wire is 2.00m long. The diameter of the steel wire is 0.60mm and the length of the bar AB is 0.20m. When a mass of 10.0kg is suspended from the centre of AB the bar remains...
Sunday, March 28, 2010 at 3:03pm by Edwin

Physics
the number of turns: lenght/diameter of wire. Can one get them any closer than touching? In this case, since there are four layers, N=4*.05/diameter so given N, you can calculate diameter.
Sunday, April 13, 2008 at 2:31pm by bobpursley

Statics
An aluminum wire has a diameter of d in. Determine the minimum diameter D of the coil in which the wire can be wound without exceeding a bending stress of 30,000psi
Monday, April 23, 2012 at 1:45pm by Mary

physics
in the searler's metod to determine the young's modulus of a wire , a steel wire of length 156cm and diameter 0.054cm is taken as experimental wire. the average increase in length for 1 1/2 kg wt is found to be o.o5o cm.Then young's modulus of the wire? ANS: 1.)2.002* 10^11 N/m
Monday, February 4, 2013 at 1:42am by kalawathi

physics
Find the diameter of an 18 m(L) long steel wire that will stretch no more than.009 m AL when a load stress of 3800 N is hung on the end of the wire. The Young's Modulus for steel wire is 200 x 109 N/m2?
Friday, December 27, 2013 at 1:40pm by farid

Physics
A silver wire and a platinum wire of the same length have the same resistance. What is the ratio of the diameter of the silver wire to that of the platinum wire.
Thursday, February 9, 2012 at 1:43pm by jason

Physics
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.1g of copper and asked to make a cylindrical wire, using all the metal, with a resistance of 1.7 Ohm. What length l will you choose for your wire? What diameter d will you choose for your wire?
Wednesday, February 17, 2010 at 6:17pm by Anthony

Physics
Suppose a straight 1.60mm -diameter copper wire could just "float" horizontally in air because of the force due to the Earth's magnetic field B⃗ , which is horizontal, perpendicular to the wire, and of magnitude 4.210−5T . What current would the wire carry?
Saturday, February 22, 2014 at 11:26am by Anonymous

physics
A 15 ohm resistor is made from a copper wire of mass 14.2 grams. What is the wire's diameter and length?
Monday, March 4, 2013 at 8:58pm by lindsey

Physics
A 14.0 ohm resistor is made from a coil of copper wire whose total mass is 23.0 g. What is the diameter of the wire, and how long is it?
Sunday, February 6, 2011 at 2:45pm by George

physics
A 50.0-g sample of a conducting material is all that is available. The resistivity of the material is measured to be 11~ 10-8 m and the density is 7.86 g/cm3. The material is to be shaped into a solid cylindrical wire that has a total resistance of 1.5 . a) What length of...
Thursday, November 15, 2012 at 7:44pm by Amber

Physics
Two wires with the same resistance have the same diameter but different lengths. If wire 1 has length L1 and wire 2 has length L2, how do L1 and L2 compare if wire 1 is made from copper and wire 2 is made from aluminum? The resistivity of copper is 1.7 10-5Ωm and the ...
Friday, October 15, 2010 at 10:46pm by Max

Physics II
A 51.0 g sample of a conducting material is all that is available. The resistivity of the material is measured to be 12 10-8 m, and the density is 7.67 g/cm3. The material is to be shaped into a solid cylindrical wire that has a total resistance of 1.5 . What length of wire ...
Thursday, March 7, 2013 at 4:08pm by Stephanie

Physics
A copper wire of diameter 0.30mm and length 1.50m is joined to another steel wire of same diameter and length 1.20m. The copper part of the double wire is hung vertically to a fixed point, while a small weight is connected to the lower end of the steel part. Joining the two ...
Thursday, October 31, 2013 at 1:14pm by Cali

Physics
A straight copper wire that is 1 milimeter in diameter carries a current of 20 miliamps. Whas the magnitude of the largest magnetic field created by this wire in Tesla?
Thursday, December 12, 2013 at 8:28am by Anonymous

physics
A straight copper wire that is 1 milimeter in diameter carries a current of 20 miliamps. Whas the magnitude of the largest magnetic field created by this wire in Tesla?
Wednesday, December 18, 2013 at 9:26pm by akameno

Physics
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.8g of copper and asked to make a wire, using all the metal, with a resistance of 1.3 Ohm. Copper has a density of 8900 kg/m^3. What length will you choose for your wire(in meters)? What ...
Wednesday, February 17, 2010 at 6:09pm by Anthony

Algebra II
The resistance of a wire is inversely proportional to the square of its diameter. If an AWG (American wire gauge) size 12 conductor (0.0808-in. diameter) has a resistance of 14.8, what will be the resistance of an AWG size 10 conductor (0.1019-in. diameter) of the same length ...
Monday, November 21, 2011 at 11:27am by Arielle

maths-mensuration
The boy having a gold coin of diameter 2cm and thickess 2mm to a goldsmith for melting and drawing into a wire of diameter 1mm . the gold smith gave back a wire of gold of length 76cm with diameter 1mm. if the wastage allowed in melting could be a maximum of 5% of the total ...
Sunday, March 10, 2013 at 11:36pm by anoynomous

physics
the resistance of copper wire of length 1m is 0.1 ohm the diameter of the wire is 0.045cm find its specific resistance
Tuesday, March 5, 2013 at 12:02pm by amit kumar

engineering physics 2
A 19 m long piece of wire of density 8.34 g/m3 has a diameter of 12.593 mm. The resistiv- ity of the wire is 1.7e-8(ohm)(m) at 20 degrees celsius. The temperature coefficient for the wire is 0.0038(degrees celsius)^-1. Calculate the resistance of the wire at 20degrees Celsius...
Thursday, February 28, 2008 at 2:56pm by David

Physics - Please Help!
I really need help on these questions because I have a test tomorrow and don't understand how to do them. 1) A wire of diameter 0.6mm is placed in the path of light coming from a laser. Light diffracts around both sides of the wire; the diffracted waves then interfere with one...
Tuesday, June 10, 2008 at 6:26pm by Alex

physics, university
A 50.0-g sample of a conducting material is all that is available. The resistivity of the material is measured to be 11 x 10-8 ohms/m and the density is 7.86 g/cm3. The material is to be shaped into a solid cylindrical wire that has a total resistance of 1.5 ohms. a) What ...
Monday, November 19, 2012 at 2:33pm by Emma

Physics/electricity
Eighteen-gauge wire has a diameter of 1.024 mm. Calculate the resistance of 19 m of 18 gauge lead wire at 20C.
Sunday, October 6, 2013 at 11:39pm by Joe

Math
The resistance(r)of a wire varies directly as the length(L)of the wire and inversely as the square of the diameter(d). If the resistance is 9ohms in 50ft of wire that has a diameter of 0.05in, find the resistance in 50ft of a similar wire that has a diameter of 0.02in. ...
Friday, September 22, 2006 at 3:04am by Amber

physics
the resistance of 100.0cm of constantan wire whose diameter of cross-section is 0.55m is 5ohm find the resistivity of constantan wire
Tuesday, August 4, 2009 at 3:57pm by matrix school 2

physics,
A 4.0kg object is supported by an aluminum wire of length 2.5 m and diameter 1.8 mm How much will the wire stretch? I need the breakdown of how this is being solved so I can figure it out in the future. Even just a formula will do
Tuesday, April 12, 2011 at 7:13pm by Dorian

physics
A wire is made of a material with a resistivity of 4.85109 10−8 Ω m . It has length 5.57436 m and diameter 0.36396 mm . What is the resistance of the wire? Answer in units of Ω
Tuesday, May 7, 2013 at 8:29pm by Anonymous

physics
The force on a wire is a maximum of 7.33E-2 N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when the current is turned on. If the pole faces ...
Monday, October 11, 2010 at 2:42pm by VJC

Physics
The force on a wire is a maximum of 6.5E-2 N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when the current is turned on. If the pole faces have...
Sunday, December 2, 2012 at 10:22pm by Lorii

physics
Consider two copper wires with the same cross-sectional area. Wire A is twice as long as wire B. How do the resistivities and resistances of the two wires compare? CHECK ALL THAT APPLY Wire A and wire B have the same resistance. Wire A has twice the resistivity of wire B. Wire...
Friday, February 7, 2014 at 8:27pm by Anonymous

Heat Transfer
A hot-wire anemometer is a temperature-based instrument for measuring velocities in a flowing gas. The key component of the device is a very fine wire (diameter = 0.0004 in., length = 0.20 in.) that is electrically heated. The wire is positioned so that the air stream passes ...
Friday, August 3, 2012 at 10:16am by Rangen

College Physics
A current exists in a wire that gradually narrows down to a smaller diameter. How do the drift velocity, the current density, and the electric field vary along the wire? Can you please help explain this?
Thursday, February 4, 2010 at 4:31pm by Sally

physics
Two spherical conducting wires A and B are connected to the same potential difference. Wire A is three times as long as wire B, with a radius double that of wire B and resistivity doubles that of wire B. What is the power delivered to wire A to the power delivered to wire B?
Wednesday, November 13, 2013 at 2:58am by Anton

Physics
A 2.2m of steel wire hangs vertically down from a support. A 1.5m length of brass wire of the same diameter is attached to the lower end of the steel wire.when a 10 kg mass is attached to the lower end of the brass wire a total extension of 0.05 m is produced. by how much does...
Thursday, January 10, 2013 at 8:56pm by Joseph

college physics
How to do this problem? Compute the number of turns of wire on a coil whose resistance measures 15.5 ohms, and which is wound around a 2-inch diameter form in a single layer of 28 gage enameled copper wire.
Sunday, April 4, 2010 at 8:43pm by Mike

College Physics
As the wire shrinks in diameter, its resistance increases, and total current decreases. Drift velocity, E-field and current density (per area of wire cross section) remain the same.
Thursday, February 4, 2010 at 4:31pm by drwls

Physics 212
Two copper wires have equal lengths, but the diameter of one is three times that of the other. a) The resistance of the thinner wire is _____ times that of the thicker wire: (Prove your work) 1) 3 2) 1/3 3) 9 4) 1/4
Monday, January 6, 2014 at 10:44am by Marcu

physics
copper has 8.5 x 10^28 electrons per cubic meter. (a) how many electrons are there in 30 cm length a 12 gauge copper wire (diameter 2.05 mm)? (b) if a current of 1.55 A is flowing in the wire, what is the average drift speed of the electrons along the wire? (There are 6.24 x ...
Monday, October 8, 2012 at 8:25pm by jewel

physics
A 570-turn solenoid is 19cm long. The current in it is 32A . A 2.0cm -long straight wire cuts through the center of the solenoid, along a diameter. This wire carries a 27A current downward (and is connected by other wires that don't concern us). What is the force on this wire ...
Monday, April 8, 2013 at 7:00pm by bud

physics
A 570-turn solenoid is 19cm long. The current in it is 32A . A 2.0cm -long straight wire cuts through the center of the solenoid, along a diameter. This wire carries a 27A current downward (and is connected by other wires that don't concern us). What is the force on this wire ...
Monday, April 8, 2013 at 9:44pm by bud

physics
Two spherical conducting wires A and B are connected to the same potential difference. Wire A is three times as long as wire B, with a radius double that of wire B and resistivity doubles that of wire B. What is the ratio power delivered to wire A to the power delivered to ...
Thursday, November 14, 2013 at 1:56am by Anonymous

Alegra II
If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?
Monday, November 21, 2011 at 11:47am by Arielle

Algebra II
If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?
Monday, November 21, 2011 at 10:01pm by Ashley

Algebra II
If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?
Tuesday, November 22, 2011 at 2:34pm by Marie

Roper
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.1 g of copper and asked to make a wire, using all the metal, with a resistance of 2.0 (ohms). Copper has a density of 8900 kg/m^3. What length will you choose for your wire? What diameter will...
Thursday, March 24, 2011 at 10:34am by Daniela

physics
Consider an aluminum wire with 1 mm diameter below its critical temperature of 1.2 Kelvin. It's critical magnetic field is 0.01 Tesla. What is the maximum current in Amps that you can send down this wire for it to remain superconducting?
Sunday, December 1, 2013 at 3:07pm by Collin

electricity
Is there any data about the use of nichrome heating, for instance: a nichrome element in the cables of electric kettles, geysers and spiral stove? What do you mean by "data"? What physical data are you looking for: resistivity?
Wednesday, February 7, 2007 at 3:03am by tigger needs help

physics
steeel and silver wire of the same diameter and same length are stretched with equal tension. what is the fundamental frequency of the silver wire if that of the steel is 200 Hz.
Thursday, August 16, 2012 at 1:39am by Anonymous

Math
If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?
Tuesday, November 22, 2011 at 10:07am by Zoey

Math
If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?
Tuesday, November 22, 2011 at 5:18pm by Jake

Physics
A 3000N force stretches a wire by 2.0mm. A second wire of the same material is twice as long and has twice the diameter. How much force is needed to stretch it by 1.0 mm?
Monday, March 31, 2014 at 4:13pm by Sarah

Physics
Suppose a straight 1.25 mm diameter copper wire could just "float" horizontally in air because of the force of the Earth's magnetic field B, which is horizontal, perpendicular to the wire, and of magnitude 5.00 multiplied by 10-5 T. What current would the wire carry? I want to...
Thursday, February 10, 2011 at 6:42pm by Justin

physics
a metal wire 1.0 mm in diameter and 2.0 m long hangs vertically with a 5.0 kg mass suspended from it. if the wire stretches 1.2 mm under the tension, what is the value of the young's modulus for metal?
Monday, January 10, 2011 at 11:56pm by pat

Physics
1) Suppose that you wish to fabricate a uniform wire out of 1.15 g of copper. Assume the wire has a resistance R = 0.600 , and all of the copper is used. (a) What will be the length of the wire? m? (b) What will be the diameter of the wire? m? 2) A rectangular block of copper...
Monday, October 4, 2010 at 9:22pm by Max

Physics
1) Suppose that you wish to fabricate a uniform wire out of 1.15 g of copper. Assume the wire has a resistance R = 0.600 , and all of the copper is used. (a) What will be the length of the wire? m? (b) What will be the diameter of the wire? m? 2) A rectangular block of copper...
Monday, October 4, 2010 at 11:44pm by Tommy

physics
Two spherical conducting wires A and B are connected to the same potential difference. Wire A is three times as long as wire B, with a radius double that of wire B and resistivity doubles that of wire B. What is the ratio power delivered to wire A to the power delivered to ...
Wednesday, November 13, 2013 at 3:32pm by Anonymous

physics
A stretched wire vibrates in its fundamental mode at a frequency of 420 Hz. What would be the fundamental frequency if the wire were one fourth as long, its diameter were quadrupled, and its tension were increased two-fold?
Saturday, November 28, 2009 at 11:35pm by Anonymous

Physics
A 550 turn solenoid is 15 cm long. The current in it is 33 A. A 3.0 cm long straight wire cuts through the center of the solenoid, along a diameter. This wire carries a 22 A current downward( and is connected by other wires that dont concern us). What is the force on this wire...
Sunday, March 2, 2008 at 9:40am by jenish

Physic
A 3.8 kg object is supported by an aluminum wire of length 1.9 m and diameter 2.2 mm. How much will the wire stretch?
Saturday, May 7, 2011 at 11:36pm by Catherine

Physic
A 3.8 kg object is supported by an aluminum wire of length 1.9 m and diameter 2.2 mm. How much will the wire stretch?
Sunday, May 8, 2011 at 11:01am by Maria

physics
1. Two identical 15.0 kg balls, each 25.0 cm in diameter, are suspended by two 35.0 cm wires as shown in the figure. The entire apparatus is supported by a single 18.0 cm wire, and the surfaces of the balls are perfectly smooth. Find the tension in the left 35.0 cm wire. 2. ...
Tuesday, September 25, 2012 at 11:17pm by Anonymous

physics
resistance=resitivity(length/area) solve for resistivity. Normally, One does not deal with wire that is that size. 55 cm diameter wire must be pretty heavy, at least one meter of it. I know my hoist could not lift it. It is bigger than the engine in my car.
Tuesday, August 4, 2009 at 3:57pm by bobpursley

phys102
A copper wire has a diameter dCu = 0.0517 cm, is L = 2.85 m long, and has a density of charge carriers of 8.501028 electrons/m3. As shown in the figure, the copper wire is attached to an equal length of aluminum wire with a diameter dAl = 0.0267 cm and density of charge ...
Saturday, August 14, 2010 at 6:04am by Aysah

As Physics
Please help me with this calculation __________________ <- A vibrating wire which is 4cm long Diameter= 0.0002m Frequency= 2500Hz density of carbon steel= 7700kg/m3 How do i find the tension of this wire? This is some of the equations which we should be using: v= √T...
Thursday, March 4, 2010 at 12:00pm by Susan

Physics
A long straight horizontal segment of wire with 0.060 m traverses a west magnetic field with 2.0 T. If a south current with 4.0 A flows through the wire, which one of the following statements concerning the effect of the magnetic force on the wire is true. a) The wire will be ...
Sunday, November 14, 2010 at 6:59pm by Katie

physics
The larger diameter wide has four times the cross sectional area of the thinner wire, and 1/4 of its resistance. If they carry the same current I, the voltage drop V = IR is four times higher for the thinner wire.
Wednesday, April 22, 2009 at 9:46pm by drwls

physics
A gold wire 5.90m long and of diameter 0.890 mm carries a current of 1.21A. A)Find the resistance of this wire. B)Find the potential difference between its ends. Can someone please help me I don't know how to answer these questions? R=p(L/A) 1.21(5.90m/.890mm) Am i setting ...
Sunday, April 12, 2009 at 3:21pm by help

physics
A 90 cm length of steel wire with a diameter of 0.5 mm is stretched between the inside walls of an oven the wire is just taut with no tension when the temperature in the oven is 250 C. What is the the tension force in the wire when the oven cools to a temperature of 150 C? ...
Thursday, February 23, 2012 at 11:30pm by sand

physics
A 90 cm length of steel wire with a diameter of 0.5 mm is stretched between the inside walls of an oven the wire is just taut with no tension when the temperature in the oven is 250 C. What is the the tension force in the wire when the oven cools to a temperature of 150 C? ...
Friday, February 24, 2012 at 3:30am by sand

physics
A 90 cm length of steel wire with a diameter of 0.5 mm is stretched between the inside walls of an oven the wire is just taut with no tension when the temperature in the oven is 250 C. What is the the tension force in the wire when the oven cools to a temperature of 150 C? ...
Saturday, February 25, 2012 at 2:03am by sand

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