A charge of $12 C$ is passing through points A and B on a circuit. If the charge's electric potential changes from $54 J$ to $36 J$ , what is the voltage between points A and B?

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Answer 1 · 2017-03-29T06:42:10

The voltage is $=1.5V$

The potential difference between the points $A$ and $B$ is $=U$

Voltage =Energy/Charge

$U=(DeltaE)/Q$

$DeltaE=54-36=18J$

The charge is $Q=12C$

$1 V=(1J)/C$

$U=18/12=1.5V$

Answer 2 · 2017-03-29T06:43:01

$-1.5V$

$E=V*Q$
$36-54=V*12$
$V=-18/12=-1.5V$

A charge of 12 C12 C is passing through points A and B on a circuit. If the charge's electric potential changes from 54 J54 J to 36 J36 J, what is the voltage between points A and B?