Question

how much work is done in moving a charge of 2 columns across two points having a potential difference 42 volt​

Answer 1

#Hey mate here is your answer

We know that

V= WQ

42=W×2

W=42/2

W=21

hope it helps

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Answer 2

We have to take potential difference as work done per unit charge to bring it from a 0 to 12 volt.

Potential difference, volt=12 volt

Charge =2 columns

Volt =W/Q

12=W/Q

W=24J

Hence, the work done in moving a charge of 2 column across the two points having a potential difference is 12 volt is 24J.

Thanks