Question

When a particle of charge 20C is brought from infinity to a point P, 2.0 mJ of work is done by the external
force. What is the potential at P ?​

Answer 1

Answer:

The definition of potential at a point is

i. Potential energy per unit charge at that point or the amount of work done per unit charge in bringing it from infinity.

V = W/q = 2mJ/20C = 0.1mV

= 100 microVolts

So the potential at that point P is,

V = 100microvolts

Answer 2

Answer:

10^-4

Explanation:

• W=q×V 2×10^-3=20×V V=10^-4 volt