Question

A uniform electric field has magnitude E and is directed in the negative z direction. The potential difference between point a (at x = 0.55 m) and point 6 (at x= 0.80 m) is 210 V. Calculate the value of E. A negative point charge q=-0.200 uC is moved from b to a. Calculate the work done on the point charge by the electric field.

Fig: 1

Fig: 2

Fig: 3