Question

What is the electric field strength between two parallel plates 5cm apart with a potential difference of 25V across them?

Answer 1

Use the following formula for the electric field strength between two parallel plates:

E = V/d

where,

V: potential difference = 25V

d: distance between plates = 5 cm = 0.05 m

Replace the previous values of the parameters into the formula for E:

`E=(25V)/(0.05m)=500(V)/(m)`

Hence, the electric field strength is 500V/m