What amount of charge is stored in a D-cell alkaline battery if it provides a current of 450 mA for 45.6 h?

Q: If a battery is rated at 57.9 A · h, how much total charge can it deliver before it goes "dead"?

A: Given : Battery  rating 57.9 Ampere Hr. Required : Total Charge it can deliver before going dead.

Q: A rechargeable nickel-metal hydride AA battery has a charge capacity of 9000 C. How long can it…

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Q: When 129 V is applied across a wire that is 8.5 m long and has a 0.30 mm radius, the magnitude of…

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Q: If a car battery provides 3.5 A of current, how muc

A: Given :-current provided by car battery=3.5 AIcharge=100 C q

Q: An 20.2 W device has 9.01 V across it. How much charge goes through the device in 4.20 h?

A: Power of the device (P) = 20.2 Wpotential difference (V)= 9.01 VTime (t) = 4.20 hoursusing 1 hour =…

Q: A 1.5 V D-size battery stores 54 kJ of energy. What steady current could this battery provide for 20…

A: Given data: emf of D-size battery is V=1.5 V Energy stored in the battery is E=54 kJ=54×103J Time…

Q: A wire 50.0 m long and 2.00 mm in diameter is connected to a source with a potential difference of…

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Q: A current of 0.86 A flows through a copper wire 0.74 mm indiameter when it is connected to a…

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Q: The heating element of a coffeemaker operates at 120 V and carries a current of 5.50 A. Assuming the…

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Q: The density of free electrons in gold is 5.9 ×1028 m3. If a gold wire with diameter d = 5.0 mm…

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Q: The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.42,…

A: Emf of battery, E = 12 V Internal resistance of battery, r = 0.4Let I be the maximum current drawn…

Q: A 43 Ω component is connected to a 12 V battery. How much energy is expended per second?

A: Given Data: The resistance of a battery is, R=43 Ω The voltage of a battery is, V=12 V   The…

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: P = 30 W V = 120 v t= 4.3 min = 4.3 ×60 = 258 sec  To calculate Q

Q: What is the current in milliamperes produced by the solar cells of a pocket calculator through which…

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Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: P = V*I  30 = 120* I  I = 30/ 120  I = 0.25 A

Q: A cylindrical resistor of length a, circular cross-sectional area of radius a, and resistivity…

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Q: A battery has a total charge capacity of 10 800 C. For how long can this battery deliver a current…

A: Data Given:- Charge capacity of the battery is Q=10800 C Current is  i=450 mA ⇒i=450 mA×1 A1000 mA…

Q: Calculate the drift velocity (in m/s) of electrons in a 17 gauge silver wire (which has a diameter…

A: diameter (d) = 1.149 mm Current (i) = 23 A Number of electrons per atom = 1 density of silver (D) =…

Q: Using Kirchhoff's Law, find the current through the 30 Ω resistor. 30.0 10.0 V Ω J 20.0 Ω 5.00 V

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Q: When a R = 88.4 Q resistor is connected across a 11.2 V battery, a current of 113.3 mA flows. What…

A: Given  R = 88.4 ohm  V = 11.2 V  I = 113.3 mA  Rint =???

Q: Calculate the current in the wire and drift velocity of elections in the wire

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Q: An incandescent light bulb is rated at 42.5 W when operated at 99.7 V. How much charge (in C) passes…

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Q: A copper wire 3.2 mm in diameter carries a 5 A current. Determine the drift velocity of the free…

A: Diameter , D = 3.2 mm = 3.2 x 10-3 m Current , I = 5 A Density , ρ = 8.9 x 103 kg/m3  M = 63.5 x…

Q: A wire is 2.3 m long and has a diameter of 0.38 mm. When connected to a 1.2 V battery, there is a…

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Q: The heating element of a coffeemaker operates at 120 V and carries a current of 2.50 A. Assuming the…

A: Given data The operating voltage of a coffee maker is V = 120 V. The current carried by the coffee I…

Q: A current of 4.00 A flows in a conductor for 3.0 s. How much charge passes a given point in the…

A: The rate of flow of charge with respect to time is called electric current.

Q: A total of 390 C of charge passes through a flashlight in 0.75 hours. What is the average current?

A: Given: total charge that pass through flashlight, Q = 390 C  time for which charge is passed…

Q: How long does it take 1.00 C of charge to flow through a handheld calculator if a 0.33 mA current is…

A: Electric current can be defined as, I=dQdt, where dQ is the amount of charge flowing through a given…

Q: Find the current (in A) when a charge of 1200C flows in 6 seconds. A) 7200 B) 200 C) 100 D) 3600

A: Current is rate of flow of charge.  I=Qt Here, I is current, Q is amount of charge and t is time.

Q: The largest number of 100 W electric light bulbs which can be operated from a 240 V supply fitted…

A: Given100 W electric bulbsVoltage=240 VMaximum possible Current (I)= 13 A

Q: What is the internal resistance of an automobile battery that has an emf of 12.0 V and a terminal…

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Q: A 27 Ω component is connected to a 12 V battery. How much energy is expended per second?

A: Energy expended per second is the power itself. P=V2R

Q: What is the current involved when a truck battery sets in motion 720 C of charge in 4.00 seconds…

A: Given : Charge (Q) = 720 C Time (t) = 4 second

Q: Calculate the drift velocity of electrons in a 12-gauge silver wire (which has a diameter of 2.053…

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Q: A current density of 8.50 x 10-13 A/m2 exists in the atmosphere at a location where the electric…

A: given that  current density is 8.50 x 10^-13 A/m2 and electric field is 176 V/m.

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: Answer             b. 42.00

Q: a copper wire is 2.50 m long and has a diameter of 2.5 mm. how much current will it draw when…

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Q: A 697 µF capacitor is discharged through a resistor, whereby its potential difference decreases from…

A: Capacitance, C = 697 μF Initially, V = 83.5 V Finally, V = 12.7 V Initially, t = 0 s Finally, t =…

Q: How much charge (in C) passes

A: Given data:     The rated power of bulb is: P = 35.6 W The operating voltage is: V = 93.8 V The…

Q: A portable CD player operates with a current of 18 mA at a potential difference of 4.3 V. What is…

A: Given: The current is 18 mA. The potential difference is 4.3 V.

Q: An 18.0 W device has 9.00 V across it. How much charge goes through the device in 4.00 h?

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Q: How many electrons flow through a battery that delivers a current of 3.0 A for 12 s?

A: Given current flowing through a battery = I = 3.0 A time for flow of current = t = 12 s we have to…

Q: A 1.59-V mercury cell with a capacity of 2.0 A*h is used to power a cardiac pacemaker. if the power…

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Q: Calculate the current density, resistance, and electrical field of a 5-m length of copper wire with…

A: Given data The length of the wire is L=5 m The diameter is d=2.053 mm The current is I=10 mA The…

Q: You have a battery marked "6.00 V." When you draw a current of 0.399 A from it, the potential…

A: Emf of battery ε == 6.00 V Current drawn from the battery I = 0.399 A potential difference for this…

Q: A calculator draws a current of 0.0002 A for 2 min. How much charge flows through it?

A: The current drawn by the calculator is I = 0.0002A. The time taken is t = 2 min. Assume the charge…

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.