Work to move a charge through a potential difference
How much work is needed to move a +2 C charge through a potential difference of +6 V?
Answer C: explanation for every choice
A
This divides charge by voltage.
B
This divides voltage by charge.
C
Correct. W = qΔV = 2 C × 6 V = 12 J.
D
This multiplies the charge by the square of the voltage.
TakeawayW = qΔV. One volt is one joule per coulomb.
Equation usedElectric potential and potential energy
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