Electric field at point 20 cm away from the centre of dielectric sphere is 100 V/m, radius of sphere is 10 cm, then value of electric field at a distance 3 cm from the centre is:
A) 100 V/m
B) 125 V/m
C) 120 V/m
D) 0
Correct Answer:
D
Solution :
Inside a dielectric sphere, electric field is zero.