A charge of $4 C$ $4 C$ is passing through points A and B on a circuit. If the charge's electric potential changes from $17 J$ $17 J$ to $1 J$ $1 J$ , what is the voltage between points A and B?

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Answer 1 · 2016-01-26T15:12:37

$4 V$ $4"V"$

If 1 coulomb of charge is moved through a potential difference of 1 volt then 1 joule of work is done.

$:.$ 4C moved through E volts requires 17 - 1 = 16 J.

This means the potential difference must be 4 V.

Or:

$E=W/Q=16/4=4"V"$

A charge of 4 C4C4 C is passing through points A and B on a circuit. If the charge's electric potential changes from 17 J17J17 J to 1 J1J1 J, what is the voltage between points A and B?