Question

A charge of 12 uC when placed in electric field experiences a force of 648 N. What is the magnitude of the electric field strength.

Answer 1

Given:

$q=12\:\rm \mu C=12*10^{-6}\: C$

$F=648\:\rm N$

The magnitude of the electric field strength

$$E=\frac{F}{q}=\frac{648\:\rm N}{12*10^{-6}\:\rm C}=5.4*10^7\rm \: N/C$$