Question

What is the work done to bring a charge of 10mc in c from infinity to a point having a potential 10v

Answer 1

How much work will be done in bringing a charge of 3 x 10–2 coulombs from infinity to a

point P at which the potential is 20 V?

Answer 2

We know, 1mc= 10^-3 C

Thus, 10mC = 10× 10^-3 C

10 mC = 10^-2C

Thus, charge= 10^-2 C

Potential difference= 10V

Now, V = W\Q

10= W/10^-2

W= 10×10^-2J

W= 0.1 J

Hence, the work done= 0.1 J