What amount of work done is needed in moving 2 C charge through a potential difference of 8 V?
16 J
Given: Charge, Q=2 C
Potential difference, V=8 V.
Let work done be W.
We know that potential difference, V=WQ
⇒ W=V×Q=2×8=16 J
Therefore, the amount of work done is 16 J.