Two large, flat, horizontally oriented plates are parallel to each other, a distance d apart. Half way between the two plates the electric field has magnitude E. If the separation of the plates is reduced to d/2 what is the magnitude of the electric field half way between the plates?

a. 0

b. E/2

c. 2E

d. 4E

e. E

E

Explanation:

From the equation describing the Electric field strength of a charge

E=F/q

We can deduce that the electric field strength is dependent on the force arcing on the magnitude of the charge.

As the force increases the the electric field increases, also the electric field strength decreases with increasing charge.

Hence the distance has no effect on the electric field strength. The magnitude remain as E