A charge of $2 C$ $2 C$ is passing through points A and B on a circuit. If the charge's electric potential changes from $21 J$ $21 J$ to $17 J$ $17 J$ , what is the voltage between points A and B?

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Answer 1 · 2016-03-04T20:48:10

$v_{A B} = - 2 V$ $v_(AB)=-2" "V$

$Delta W=W_2-W_1$
$Delta W=q(V_B-V_A)$
$Delta W=q(V_(AB))$
$17-21=2*V_(AB)$
$-4=2*V_(AB)$
$v_(AB)=-2" "V$

A charge of 2 C2C2 C is passing through points A and B on a circuit. If the charge's electric potential changes from 21 J21J21 J to 17 J17J17 J, what is the voltage between points A and B?