The electric potential at a point in free space due to a

The electric potential at a point in free space due to a charge Q coulomb is Q × 10¹¹ volts. The electric field at that point is

1. 4 πε₀ Q × 10²² volt/m
2. 12 πε₀ Q × 10²⁰ volt/m
3. 4 πε₀ Q × 10²⁰ volt/m
4. 12 πε₀ Q × 10²² volt/m

Given that, V = Q × 10¹¹ volts Electric potential at point is given by

V =	1	.	Q	or, Q × 10¹¹ =	1	.	Q
	4πε₀		r		4πε₀		r

r =	1	. 10^-11m.
	4πε₀

= 4πε₀ Q × 10²² volt m^-1