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April 21, 2014

Search: A battery consists of five dry cells connected in series. If the voltage developed by each cell is 1.5 V, the total voltage developed by the battery is

Number of results: 9,283

electricity and electronics
a battery consists of five cells connected in series if the voltage developed by each cell is 1,5 the total voltage developed by the battery is 5 x 1.5 = 7.5 V Battery voltages add when connected in series.
Wednesday, August 10, 2005 at 3:25pm by annette

electricity and electronics
a battery consists of 5 dry cells connected in series.if the voltage developed by each cell is 1.5 the total voltage developed by the battery is
Saturday, November 1, 2008 at 9:06am by meeko

Physics
A battery charger is connected to a dead battery and delivers a current of 4.5 A for 6.0 hours, keeping the voltage across the battery terminals at 12 V in the process. How much energy is delivered to the battery?
Thursday, September 6, 2007 at 8:19pm by Mary

chemistry
What is the general form of a common automobile battery? How many electrodes does a car battery use? Does it use an acidic aqueous electrolyte solution? Is the battery rechargeable? Is the battery voltaic or electrolytic when discharging? Is the battery voltaic or electrolytic...
Friday, April 27, 2012 at 10:23am by Anonymous

physics
A 8 V flashlight battery has an internal resistance of 1.7 Ω when new, and 8 Ω when old. Imagine this is a resistor in series with the battery mounted INSIDE the battery itself, which describes the chemical degradation of the battery with age. Calculate the voltage ...
Tuesday, July 19, 2011 at 2:16pm by Naina

physics
Consider a battery that has Vt = 12.0 V when it is not connected to a circuit. When a 10.0- resistor is connected with the battery, the potential difference across the battery’s terminals drops to 10.9 V. What is the internal resistance of the battery?
Wednesday, September 12, 2012 at 8:32am by anna

Physics
A circuit consists of a self inductor of L=0.003 H in series with a resistor R1=5 Ohm. Parallel to these is a resistor R2=10 Ohm. A battery of V0=9 volt is driving the circuit. Current has been running for 10 minutes. (a) How much energy (in Joules) is now stored in the self-...
Tuesday, April 9, 2013 at 2:44pm by abdul rahman

physics
The voltage across the terminals of a 8.90 V battery is 8.00 V when the battery is connected to a 50.0 \Omega load.What is the battery's internal resistance?
Wednesday, March 9, 2011 at 9:36pm by Mitchell

Science
Usually a power inverter runs from a battery and generates alternating current from the direct current battery source. So the question really is: Where does the battery get its energy? If it is from a car battery then it is probably using gas or diesel fuel, fossil fuel If it ...
Wednesday, January 8, 2014 at 5:01pm by Damon

Physics
A battery has an internal resistance of 0.42. A number of identical light bulbs, each with a resistance of 31.500, are connected in parallel across the battery terminals. The terminal voltage of the battery is observed to be one-half the emf of the battery. How many bulbs are ...
Wednesday, September 26, 2012 at 7:47pm by Luis

PHYSICS
When the resistors are connected in series to a 12.0-V battery, the current from the battery is 1.73 A. When the resistors are connected in parallel to the battery, the total current from the battery is 10.1 A. Determine the two resistances.
Friday, January 25, 2013 at 3:29pm by PLEASE HELP

Physics
A battery delivering a current of 55.0 A to a circuit has a terminal voltage of 21.8 V. The electric power being dissipated by the internal resistance of the battery is 36 W. Find the emf of the battery.
Monday, February 18, 2013 at 7:00pm by Anonymous

Physics
If the emf of a battery is 23 V and a current of 66 A is measured when the battery is shorted, what is the internal resistance of the battery? Answer in units of Ω How would you set up the equation to solve?
Monday, March 4, 2013 at 5:09pm by Tiffany

Physics
A 2.0-ohm resistor is connected in series with a 20.0-V battery and a three-branch parallel network with branches whose resistances are 8.0 ohms each. Ignoring the battery's internal resistance, what is the current in the battery?
Thursday, April 4, 2013 at 5:17pm by leo

Physic
The voltage across a battery is equal to the e m f of the battery only when there is no load on the battery. When a resistive load is connected across the terminals, a portion of the voltage is lost across the internal resistance of the battery.
Thursday, April 3, 2014 at 9:43am by Henry

physics
A new "D" battery has an emf of 1.5 V. When a wire of negligible resistance is connected between the terminals of the battery, a current of 25 A is produced. Find the internal resistance of the battery. ________ Ω
Wednesday, January 26, 2011 at 11:36pm by ali-1

Solar Energy
a) Consider a lead acid battery with 100Ah capacity and a rated voltage of 24V. What is the total capacity of energy in Watt-hours that can be stored in the battery? b) Assume that the battery is completely empty. The battery is now charged at a C-rate of 0.50C. What is the ...
Thursday, November 14, 2013 at 6:20am by Anonymous

physics
A car battery has a rating of 200 ampere·hours (A·h). This rating is one indication of the total charge that the battery can provide to a circuit before failing. What is the total charge (in coulombs) that this battery can provide? Determine the maximum current that the ...
Wednesday, January 30, 2008 at 8:50pm by rick

Physics
A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V. (C is the capacitance and U is the stored energy.) Answer the following questions regarding the capacitor charged by a battery. For ...
Monday, February 6, 2012 at 7:43pm by Jeff

physics
To recharge a 12 V battery, a battery charger must move 2.7 × 105 C of charge from the negative terminal to the positive terminal. How much work is done by the battery charger? Answer in units of J
Monday, April 16, 2012 at 1:25pm by Anonymous

English
In #s 2 and 5, the word "battery" needs to be replaced by "power" -- the battery is still there, but its power has been used up. Also in #2, the second sentence needs to have "battery" in place of "it." All others are fine.
Monday, March 28, 2011 at 6:49am by Writeacher

Physics
A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V. (C is the capacitance and U is the stored energy.) Answer the following questions regarding the capacitor charged by a battery. For ...
Thursday, February 14, 2013 at 9:45pm by Nicole

Physics
A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V. (C is the capacitance and U is the stored energy.) Answer the following questions regarding the capacitor charged by a battery. For ...
Thursday, February 14, 2013 at 10:07pm by Nicole

maths
a computer game and battery costs£21. the game costs £20 more than the battery.so how much does the battery cost?
Sunday, June 8, 2008 at 7:25am by bill

CHEMISTRY
Suppose that a fully charged lead¨Cacid battery contains 1.16 L of 5.00 M H2SO4. What will be the concentration of HSO4- in the battery after 2.83 A of current is drawn from the battery for 6.3 h? Pb(s) + PbO2(s) + 2H+(aq) + 2HSO4−(aq) ¡ú 2PbSO4(s) + 2H2O(l) Enter your ...
Saturday, December 1, 2012 at 12:11am by sabrina:help please

Physics
A 79.4-Ω and a 47.7-Ω resistor are connected in parallel. When this combination is connected across a battery, the current delivered by the battery is 0.296 A. When the 47.7-Ω resistor is disconnected, the current from the battery drops to 0.126 A. (a) Determine...
Wednesday, March 6, 2013 at 5:06am by ann

Chemistry
how do you identify an anode and cathode by direct observation in an electochemical battery when you dont have a voltmeter and the chemicals are no known. I look on the battery for a + and - sign. In a battery, the + pole is the cathode and the - pole is the anode.
Thursday, January 11, 2007 at 10:20pm by lucie

General Physics 2
A dead battery is charged by connecting it to the live battery of another car with jumper cables. Assume that V = 9 V and R = 0.80 Ù. Determine the current in the starter. Determine the current in the dead battery.
Sunday, October 27, 2013 at 12:49am by Sabrina

physics please help!!
A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V Volts. (C is the capacitance and U is the stored energy.) Select true or false for each statement. 1) With the capacitor connected to ...
Monday, February 6, 2012 at 8:17pm by archi

Physics (batteries)
Question: After five minutes of use, a 1Ah capacity battery has lost 0.5Ah of capacity. Calculate the average current draw over the five minute period. Believe it or not, I haven't actually been set this question as homework. I am merely curious and constructed it myself. I am...
Monday, November 26, 2007 at 5:25pm by JohnH

Physics
A car battery is rated at 90A hr, meaning that it can supply a 90A current for 1 hr before being completely discharged. If you leave your headlights on until the battery is completely dead, how much charge leaves the positive terminal of the battery?
Wednesday, February 17, 2010 at 6:24pm by Anthony

Physics
Suppose the battery on your phone delivers a current of 0.740 mA (that's milliAmperes) over a time of 4.00 hours. What is the total charge that flows out of the battery during this time? AND How many electrons flow out of the battery during this time?
Monday, January 28, 2013 at 1:24pm by Tessa

Physics
Suppose you make an electromagnet with a copper wire and a battery by putting the two ends of the wire on the two ends of the battery. If you switch the side of the battery, are you changing the magnetic poles of the wire?
Wednesday, April 9, 2014 at 1:32pm by Anonymous

Science
Suppose you make an electromagnet with a copper wire and a battery by putting the two ends of the wire on the two ends of the battery. If you switch the side of the battery, are you changing the magnetic poles of the wire?
Wednesday, April 9, 2014 at 4:38pm by Anonymous

PHYSICS 2
Two resistors have resistances R(smaller) and R(larger), where R(smaller) < R(larger). When the resistors are connected in series to a 12.0-V battery, the current from the battery is 1.99 A. When the resistors are connected in parallel to the battery, the total current from...
Friday, January 25, 2013 at 6:39pm by PLEASE HELP

pHYSICS
Two resistors have resistances R(smaller) and R(larger), where R(smaller) < R(larger). When the resistors are connected in series to a 12.0-V battery, the current from the battery is 1.99 A. When the resistors are connected in parallel to the battery, the total current ...
Saturday, January 26, 2013 at 9:28pm by PLEASE HELP

physics
The load across a 12 V battery consists of a series combination of three resistors 21 ohm, 22 ohm, and 56 ohm. What is the total resistance of the load?
Monday, March 28, 2011 at 7:13pm by maria

Physics
I'm stumped on what formula to use for the following question. A 1.5V battery does 4.5*10^2 J of work in 120s. Calculate the current through the battery Calculate the number of elementary charges that pass through the battery. I've been trying to figure out the formula to ...
Wednesday, August 26, 2009 at 11:03pm by Kate

physics
The load across a 12 V battery consists of a series combination of three resistors 21 ohm, 22 ohm, and 56 ohm. What is the total resistance of the load? Answer in units of .
Tuesday, March 29, 2011 at 7:53pm by maria

Physic
Why is the potential difference between the terminals of a battery is not always equal to the e m f of a battery
Thursday, April 3, 2014 at 9:43am by Kenah

Math
The decimal number 0.75 means: A. there are seventy-five parts of a whole unit that has 100 parts. B. there are seven-and-a-half parts of a whole unit. C. that a whole unit consists of seventy-five parts. D. seventy-five tenths of a whole unit.
Saturday, July 14, 2012 at 5:16pm by Loulou

Chemistry
Compare & Explain the differences between a lead-acid battery and a dry-cell battery?
Wednesday, November 3, 2010 at 7:21pm by sarah

Chemistry
A battery is constructed based on the oxidation of magnesium and the reduction of Cu^2+. The initial concentrations of Mg^2+ and Cu^2+ are 1.2*10^-4M and 1.5M, respectively, in 1.0-L half-cells. The initial voltage of the battery is 2.83V with the standard voltage at 2.71V. ...
Sunday, May 2, 2010 at 8:31pm by Emma

calculus
An electrical circuit switches instantaneously from a 3 volt battery to a 23 volt battery 6 seconds after being turned on. Sketch on a sheet of paper a graph the battery voltage against time. Then fill in the formulas below for the function represented by your graph. For t<...
Sunday, September 8, 2013 at 3:08pm by nicole

physics
An old battery with an emf of 9.0 V has a terminal voltage of 7.8 V when it is supplying a current of 1.5 mA. What is the internal resistance of the battery?
Monday, February 24, 2014 at 12:38pm by mercedes

physical
A battery of e.m.f 24v and internal resistance of 4ohms is connected to a resistor of 3ohms.what is the terminal potential difference of the battery
Sunday, March 6, 2011 at 1:33pm by vincent

physics
A circuit consists of a 12.0 V battery connected to three resistors 44 ohms, 15 ohms and 120 ohms in series. A)Find the current that flows through the battery. B)Find the potential difference across the 44 Ohms resistor. C)Find the potential difference across the 15 ohms ...
Sunday, February 12, 2012 at 5:39pm by jazz

math
A car has a 12 volt battery. The engine has a resistance of 0.22 ohms. How many amps will be drawn from the battery when the key is turned?
Sunday, June 17, 2012 at 11:10pm by Leo

Grammar and Composition
please check: A popular even in the Olympic Games is the PENTATHLON, which consists of _____ events. five?
Wednesday, October 14, 2009 at 9:00pm by y912f

physics- electricity
An electric car uses a lithium metal hydride battery with a mass of 250 kg. The battery delivers 300v and holds a stored charge q of 70 ampere-hours. Calculate the total energy stored in the battery in kWh. Calculate the number of gallons of gas that would have an equivalent ...
Wednesday, February 27, 2013 at 11:37am by Anonymous

AP PHYSICS
A 3.0-uF capacitor and a 4.0-uF capacitor are connected in series across a 40.0-V battery. A 10.0-uF capacitor is also connected directly across the battery terminals. Find the total charge that the battery delivers to the capacitors. I NEED HELP WITH THIS PROBLEM. THANKS!
Tuesday, April 1, 2008 at 1:37pm by Becky

physics
Suppose a battery output a voltage of 9 volt. Calculate how many joules of energy are imparted to every individual electron moving through this battery?
Wednesday, May 22, 2013 at 1:49am by Abhijit

math
Solve by setting up the proper equation to describe the facts given and then carrying out the mathematical calculations to solve for the unknown variable(s). Three batteries are connected in series so that the total voltage is 54 volts. The voltage of the first battery is ...
Friday, July 6, 2012 at 12:21pm by kenny

physics
A battery has an internal resistance of 0.016 and an emf of 9.00 V. What is the maximum current that can be drawn from the battery without the terminal voltage dropping below 8.75 V?
Thursday, March 22, 2012 at 8:03am by Anonymous

Physics
A battery has an internal resistance of 0.017 Ù and an emf of 9.00 V. What is the maximum current that can be drawn from the battery without the terminal voltage dropping below 8.75 V?
Saturday, February 23, 2013 at 8:03pm by Don

Math
I = E/R A car has a 12 volt battery. The engine has a resistance of 0.22 ohms. How many amps will be drawn from the battery when the key is turned? I (to the nearest hundredth) = amperes
Monday, June 17, 2013 at 3:17pm by bob

poetry
true or false iambic pentameter consists of five feet of two syllables,each of which is an uncaacented syllable followed by an accented one
Saturday, January 14, 2012 at 2:14pm by mariam

Physics
An uncharged capacitor is connected to the terminals of a 3.0 V battery, and 9.0 uC flows to the positive plate. The 3.0 V battery is then disconnected and replaced with a 8.0 V battery, with the positive and negative terminals connected in the same manner as before. How much ...
Wednesday, March 3, 2010 at 3:29am by JOTHEY

physics
A 2600-pF air gap capacitor is connected to a 9.0 V battery.If a piece of pyrex glass is placed between the plates,how much charge will then flow from the battery?
Monday, February 4, 2008 at 9:11pm by jenish

Calculus
An electrical circuit switches instantaneously from a 2 volt battery to a 20 volt battery 3 seconds after being turned on. Sketch on a sheet of paper a graph the battery voltage against time. Then fill in the formulas below for the function represented by your graph. For t &...
Saturday, February 5, 2011 at 11:51pm by Abigail

Electricity
A battery is connected to the endpoints A and B of a homogeneous wire. Using an ammeter one finds that a current I = 1.5 A flows through the conductor. Then, the wire is bent in the form of a circle and the same battery is connected to points A and B. What is the current in ...
Monday, December 9, 2013 at 10:55pm by Anonymous

Science
A 6.0 volt battery is hooked up to a light bulb, whose resistance is 3.1 ohms. How many electrons would leave the battery per second? (Hint: 1 electron = 1.6E-19 C)
Monday, September 28, 2009 at 6:50pm by David

PHYSICS
An automobile battery has an emf of 12.6 V and an internal resistance of 0.0500 . The headlights together present equivalent resistance 5.60 (assumed constant). (a) What is the potential difference across the headlight bulbs when they are the only load on the battery? V (b) ...
Friday, September 6, 2013 at 12:29am by priya

Science!
What are the parts of a battery and how do they function? http://home.howstuffworks.com/battery.htm
Thursday, November 16, 2006 at 2:28pm by I REALLY NEED HELP!

Physics
What is the emf of a battery with a 0.15 Ω internal resistance if the battery delivers 1.5 A to an externally connected 5.0 Ω resistor?
Monday, February 14, 2011 at 8:15pm by Adam

physics
a battery with and emf of 12V and an internal resistance of 0.5 ohms, is connected in series to a resistor of 5.0 ohms. what is the terminal voltage (n V) of the battery?
Monday, April 12, 2010 at 6:12pm by mandy

science-physics
a battery of 12v supplies a charge of 1000C to an electric device. how much work is done by the battery in moving the charge?
Monday, July 23, 2012 at 2:43pm by aisha

Gen Chem II
You conduct another experiment on silver condensation. You add 8.0 g of silver nitrate to 200 mL of pure water. You attach a single 850 mAh AAA battery (at 1.3 V) to the electrochemical cell. You can assume that the entire battery charge is useable for electroplating. You get ...
Monday, November 18, 2013 at 10:25pm by kyle

Science please help!
A lamp connected to a battery lights up. If a second, identical lamp is connected to the battery in parallel, the current drawn from the battery will _____ , and compared to the original brightness of the first lamp, both lamps will be _____ . will the current increase and ...
Saturday, May 12, 2012 at 4:52pm by matthew

physics
After a parallel-plate capacitor is charged by a battery, it is disconnected from the battery and its plate separation is increased. Which of the following statements is correct?
Friday, January 29, 2010 at 8:19am by Cal

chemistryhelp
if i made a simple circuit with an NaCl in between is that similar to what the electrolyte in a battery does so does that mean that i can put NaCl in substitute of whatever is currently in the battery
Friday, February 24, 2012 at 5:36pm by joe

Math
Change the base five numbers to equivalent base ten numbers. Also take given base five numbers and write next five base numbers to five numbers. a. 23 five b.14 five c. 214 five
Tuesday, January 24, 2012 at 10:51pm by Emma D.

maths
let x be the game and y be the battery and we will solve them simultaneously: therefore we know that x=y+20 and y=21-x y=21-(y+20) =21-y-20 2y=1 y=1/2 if the battery cost 0.5 pounds, simply add 20 to find the games cost. Answer= game = 20.5 battery = 0.5 total = 21
Sunday, June 8, 2008 at 7:25am by Pickle

physics
a 2 uF capacitor is connected in series with a 1.2 M ohms resistor and a 5 v battery for a long time. What is the current in the resistor 1s after disconnecting the battery?
Wednesday, November 23, 2011 at 7:20pm by JM

physics
A car battery has a rating of 200 ampere·hours (A·h). This rating is one indication of the total charge that the battery can provide to a circuit before failing.
Wednesday, January 30, 2008 at 8:49pm by rick

college physics
A certain 9-V battery measures 9.0 V with no load connected to it, but only 8.5 V when connected to a radio which draws 150 mA of current. What is the internal resistance of the battery?
Friday, April 9, 2010 at 5:24pm by Mike

Physics
Where does the energy from a battery come from? When you use the battery to run a flashlight where does the energy go?
Saturday, December 1, 2007 at 4:13pm by Anonymous

Chemistry
seriously, any help would be much appreciated. You conduct another experiment on silver condensation. You add 8.0 g of silver nitrate to 200 mL of pure water. You attach a single 850 mAh AAA battery (at 1.3 V) to the electrochemical cell. You can assume that the entire battery...
Monday, November 18, 2013 at 11:09pm by kyle

Physics
By our sign conventions, if a battery is traversed in the actual direction of the current in it, what can you say about the sign of the change in electric potential (the battery’s terminal voltage)?
Sunday, June 5, 2011 at 9:28pm by John

physics - conceptual
Three identical capacitors are connected in series to a battery. If a total charge of Q flows from the battery, how much charge does each capacitor carry? A)9Q B)Q/3 C)Q D)3Q E)Q/9
Sunday, February 3, 2013 at 6:36pm by Liz

chem
Suppose that a fully charged lead-acidbattery contains 1.50 of 5.00 . What will be the concentration of in the battery after 3.90 of current is drawn from the battery for9.00 ? \
Wednesday, July 31, 2013 at 7:00pm by paco

Physics
I have a circuit with three capacitors and a battery. The battery supplies 15V. The battery is in series with C3. C3 is in series with ( C23). C3= 3*10^-6 F C2= 2 *10^-6 F C1= 1*10^-6 F (respectively C2 +C3 are is parallel withe ach other). I know the equivalent capacitance ...
Wednesday, February 10, 2010 at 6:57pm by Sara

circuits
A string of five series resistors is connected across a 20 v battery. Zero volts are measured across all the resistors except the second one. What can be wrong with this circuit?
Thursday, May 30, 2013 at 2:56am by Adam

calculus
A competing technology uses a photovoltaic cell to charge a battery which can then be used to power a LED light. To compare these technologies, we make some reasonable assumptions. We assume the solar cell is 10 cm on a side, and that it has an efficiency of 15%. We assume the...
Wednesday, December 18, 2013 at 3:57pm by Danny Simone

chemistry
A competing technology uses a photovoltaic cell to charge a battery which can then be used to power a LED light. To compare these technologies, we make some reasonable assumptions. We assume the solar cell is 10 cm on a side, and that it has an efficiency of 15%. We assume the...
Wednesday, December 18, 2013 at 5:34pm by Danny Simone

4th grade science
1. The light bulb needs both sides of the battery 2. Only one side of the battery is being touched by the wire 3. The second wire is touching rubber not metal
Tuesday, February 28, 2012 at 6:39pm by Sydney

12th grade
A certain parallel plate capacitor consists of two identical aluminium plates each of area 2times 10^-4 m^2.the plates are seperated by a distance of 0,03mm, with air occupying the space between the plates. 1-CALCULATE THE CAPACITANCE OF THE CAPACITOR. AND 2-CALCULATE THE ...
Sunday, October 10, 2010 at 7:27pm by Masixole4Lydia

Chemistry
Sulfuric acid/ Lead Battery: -the electrodes for the battery are composed of Pb(s), PbO2, and/or PbSO4. What are the half reaction occuring at each electrode? include electrolysis of water: Process Anode/Cathode Initial Charging: Discharging Recharging
Saturday, April 26, 2008 at 5:18pm by sara

geometry
a target consists of five concentric circles, each with a radius 1 inch longer than that of the previous circle. calculate the area between the third and fourth circles from the center.
Thursday, August 5, 2010 at 4:56pm by kayle

Physics
A parallel-plate capacitor is charged by a battery and then the battery is removed and a dielectric of constant K is used to fill the gap between the plates. Inserting the dielectric changes the energy stored by a factor of A)2. B)1/K. C)1 (no change). D)K. E)K-1.
Sunday, February 3, 2013 at 6:38pm by Liz

Physics
A capacitor consists of a set of two parallel plates of area A separated by a distance d. This capacitor is connected to a battery that maintains a constant potential difference between the plates and has charge Q1. If the separation between the plates is doubled, what will ...
Wednesday, February 9, 2011 at 7:30pm by Sam

acids and alkalis
i got baking powder oven clenaer toothpaste and mouthwash as alkalines. milk lemon squash lemonade vinegar whit vinegar phona battery car battery hope this helped :-)
Saturday, November 4, 2006 at 5:56am by ur mums dildo

physics
if there is a circuit that has a battery and a lightbulb: will an electron have more electric potential energy on the positive side of the battery or negative side of the battery? - i think its same because conservation of energy. energy gained by electron on positive side is ...
Friday, February 13, 2009 at 11:26pm by stacey

physics
A 1.50-V battery supplies 0.244 W of power to a small flashlight. If the battery moves 2.53 1020 electrons between its terminals during the time the flashlight is in operation, how long was the flashlight used?
Sunday, February 17, 2013 at 9:40pm by taryn

physics
The emf of a battery is equal to its terminal potential difference: A) under all conditions B) only when the battery is being charged C) only when a large current is in the battery D) only when there is no curent in the battery E) under no conditions my answer: d, The chemical...
Tuesday, March 27, 2007 at 10:21am by susane

physics
An old battery with an emf of 9.0 V has a terminal voltage of 7.8 V when it is supplying a current of 1.5 mA. What is the internal resistance of the battery? 800 Ω 900 Ω 400 Ω 600 Ω
Monday, February 24, 2014 at 12:39pm by mercedes

physics
When a capacitor are plugged into the battery, what happens to the Q(charge), potential difference, and C. It would have the same effect if two capacitors connected in parallel plugged into the battery
Sunday, August 15, 2010 at 7:35pm by blast

physics
A 24V battery of internal resistance of 10ohms is connected to a variable resistor. At what value of current drawn from battery the rate of heat produced by the resistor is maximum? Hence find its value.
Tuesday, March 16, 2010 at 12:33pm by Edwin

Differential Equations
Question 1 A particle moves on the x-axis with an acceleration , a=(6t-4)ms^-2 . Find the position and velocity of the particle at t=3 , if the particle is at origin and has a velocity of 10ms^-1 when t=0 by using either the method of undetermined coefficient or Laplace ...
Saturday, November 5, 2011 at 8:57am by mrexp21

physics
When a capacitor are plugged into the battery, what happens to the Q(charge), potential difference, and C(do all of them increase?). would it have the same effect if two capacitors connected in parallel plugged into the battery
Monday, August 16, 2010 at 3:18am by blast

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