Question

The source of electrons at a point is at the middle to two large metal plates 2 cm apart. One of the metal plates is maintained at 2 400 V above the other. Find (a) the potential gradient at the source measured at right angle to the plates and (b) the potential gradient at the source measured along a line to a point 15 cm from one plate.

With Complete Solution. Thank you.

Answer 1

(a) The gradient is

$$\nabla=V/d=2400/2=1200\text{ V/cm}.$$

(b) The gradient is

$$\nabla=V/L=2400/15=160\text{ V/cm}.$$