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Electrical Resistance
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Questions (93)
German silver wire has a cross-sectional area of 2.047 x 10^-3 cm^2. How many meters are needed to make a resistance of 100
3 answers
asked by
Sejul
1,235 views
A 0.35 m2 coil with 50 turns rotates at 5 radians per sec2 in a magnetic field of 0.6 Tesla. What is the value of the rms
3 answers
asked by
unknown
1,022 views
An electric immersion heater is rated 5 A when connected to a 120V circuit. What is the resistance of the heater? If it takes
2 answers
asked by
Don
1,014 views
A wire of cross-sectional area 5.00x10^-6 m^2 has a resistance of 1.75 ohm. what is the resistance of a wire of the same
2 answers
asked by
Jamie
987 views
A wire of nichrome of length 80cm has a resistance of 50 ohms. if the wire is four folded, find new resistance.
3 answers
asked by
vanditha
891 views
a piece of wire has a resistance of R , it is cut into three pieces of equal length,and the pieces are twisted together parallel
4 answers
asked by
brad
870 views
(1).The resistance of wire is giving by the relation Rt=Ro(1 alpha t Bt^2)
T is the temperature alpha & Bt^2(beta) are constant
1 answer
asked by
POPPY
865 views
A rectangular piece of gold is 3.8 cm long and 2.5 cm wide. How deep is the piece when it displays a resistance of R = 1.35 μω
2 answers
asked by
Susie
818 views
what will be the resistance of a metal wire of length 2m and area of cross section 1.55×10 power -6 m square is the resistivity
2 answers
asked by
Crispin
816 views
A "Bus" bar is in the form of a slab of copper 2meters long, 1cm wide, and 10 cm thick.
a) What is the resistance of the bar at 0
2 answers
asked by
Tristan
845 views
What is the resistance of a 2.5 m length of copper wire 1.3 mm in diameter?
2 answers
asked by
michelle
804 views
The electrical resistance of a wire waves directly as its length & inversely as the square of its diameter if a wire 30m long
2 answers
asked by
Helena
827 views
a wire has a resistance of 6 ohm it is stretched out to a new length which is three times its original length what is the
4 answers
asked by
mat
802 views
A 15 ohm resistor is made from a copper wire of mass 14.2 grams. What is the wire's diameter and length?
2 answers
asked by
lindsey
785 views
If a wire of resistance R, resistivity ñ "roe", length L, and cross sectional area A, had its length doubled and radius halved,
2 answers
asked by
Lauren
757 views
If a Wire Resistance is 10 ohm at 0 DegC and the same wire Resistance becomes 15 ohm at temperature 100 DegC, then at what
2 answers
asked by
SIDDHARTHA
749 views
the ______ value indicates the amount of resistance in 1cm of insulation
3 answers
asked by
loserisuck
700 views
The electrical resistance of a wire is directly proportional to its length. If a 3-foot long wire has a resistance of 1 ohm(s),
2 answers
asked by
Joe
690 views
the resistance of copper wire of length 1m is 0.1 ohm the diameter of the wire is 0.045cm find its specific resistance
2 answers
asked by
amit kumar
697 views
A material is formed into a long rod with a square cross section 0.31 cm on each side. When a 100 V voltage is applied across a
2 answers
asked by
David
631 views
What length of #22 B&S gauge copper wire is needed to make a resistance of 500 ohms?
This is what I came up with but don't think
1 answer
asked by
Kevin
610 views
The resistance of the wire in the windings of an electric starter motor for an automobile is 0.0190 Ohms. the motor is connected
2 answers
asked by
Kara
610 views
A three quarter inch wire has 12 ohms resistance. How much resistance has the same length of half-inch wire, if resistance
2 answers
asked by
Don
597 views
suppose you have to wires of equal length made from the same materials. how is it possible for the wires to have different
3 answers
asked by
keyondest
594 views
Two wires have the same cross-sectional area and are joined end to end to form a single wire. The first wire has a temperature
2 answers
asked by
PLease HELP
586 views
A wire has a resistance of R. What will the wire's resistance be if it is stretched to four times its original length without
2 answers
asked by
dani
556 views
Calculate the resistance of a copper wire cross section area 2*10_2 the resistivity of wire is 1.67*10_ohm metre
2 answers
asked by
jyiti Bahuguna
563 views
the resistance of 100.0cm of constantan wire whose diameter of cross-section is 0.55m is 5ohm
find the resistivity of constantan
2 answers
asked by
matrix school 2
563 views
A cylindrical conductor of length l and unifrom area of across section A has resistance R another conductor of length 2l and
2 answers
asked by
Libaan
536 views
find the resistance of 134m of No.20 copper wire at 20 degrees C (p=1.72x10^-6Ohom cm , A= 2.07x10^-2 cm ^2)
2 answers
asked by
physics
511 views
One mile of copper wire has a resistance of 13 Ω. Using the wire to electrically connect two terminals that are half a mile
2 answers
asked by
BOBBY
527 views
A graphite rod is 1.0 m long, with a 1.0 cm by 0.5 cm rectangular cross sectional area. What is the electrical resistance
2 answers
asked by
pakilina
514 views
By what factor is the resistance of a copper wire changing when its temperature is increased from 20 degrees Celsius to 120
1 answer
asked by
Lindsay
493 views
The resistivity of silver is 1.59 × 10-8 Ω·m. What is the resistance of a section of 12 gauge wire (diameter 0.2057 cm) that
1 answer
asked by
Linda
469 views
he resistance. R. of a wire varies directly as its length and inversely as the square of its diameter. If the resistance of a
1 answer
asked anonymously
48 views
Find the resistance at 100°C of a silver wire 1 mm in diameter. How much wire is needed?
1 answer
asked anonymously
28 views
Find the resistance of a piece of 8 AWG copper wire 400 Ft long. Assume a temperature of 20 degree C.
1 answer
asked anonymously
22 views
1. What is resistance a measure of?
* 1 point The energy of electrons in a resistor The number of coulombs in resistor The
1 answer
asked anonymously
31 views
If the resistance of copper wire is 50 ohm at 20°C, what is the resistance at 100°C?
1 answer
asked anonymously
14 views
If the resistance of copper wire at freezing (0°C) is 30 ohm, what is its resistance at -40°C?
1 answer
asked anonymously
16 views
A resistor has resistance of 500 ohms, how could this resistance be measured experimentally
1 answer
asked anonymously
18 views
Consider a block of copper that is a rectangular prism (a box) with sides 15 cm by 20 cm by 50 cm. The resistivity of copper is
1 answer
asked anonymously
15 views
Materials that have…. Resistance and resist the flow of electric currents are called….
1 answer
asked anonymously
18 views
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