Question

A uniform electric field in an area has a magnitude of 10 n/c and is directed upward. a charge brought into the area experiences a force of 2.0 n upward. the charge must be

Answer 1

charge=0.2 C . The charge is positive.

Explanation:

The formula for force is given by

F= q E

F= force= 2 N upwards

E= 10 N/C upwards

q= charge

so 2= q (10)

q= +0.2 C

As the direction of force is same as the direction of the electric field, so the charge is positive.