Voltage Physics Example 3

Follow the full solution, then compare it with the other examples linked below.

Example 3

easy
How much work does a 9 V9 \text{ V} battery do to push 4 C4 \text{ C} of charge through a circuit?

Solution

  1. 1
    Use W=VQW = VQ.
  2. 2
    W=9×4=36 JW = 9 \times 4 = 36 \text{ J}

Answer

W=36 JW = 36 \text{ J}
A 9 V9 \text{ V} battery gives 9 J9 \text{ J} of energy to every coulomb of charge that passes through it.

About Voltage

The difference in electric potential energy per unit charge between two points. Measured in volts (V).

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More Voltage Examples

Example 1 easy

A battery does [formula] of work to move [formula] of charge. What is the voltage of the battery?

Example 2 medium

A [formula] battery drives a current of [formula] for [formula]. How much energy does it supply?

Example 4 medium

A [formula] battery transfers [formula] of energy to a circuit. How much charge has passed through t

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