Question

The electric field intensity at a point situated 4 metres from a point charge is 200 n/c. If the distance is reduced to 2 metres, the field intensity will be

Answer 1

Answer:

Electric field is directly proportional to 1÷r^2

200=1÷16 equ 1

x=1÷4 equ 2

equ 1÷equ 2

200÷x=4÷16

x=800