Question

Consider a uniform electric field of 50 N/C directed towards east. if the voltage measured relative to ground at a given point is 80 V what is the voltage at a point 1.0 m directly west of the point? assume a constant electric field?

Answer 1

Answer:30 V

Explanation:

Electric Field Strength is 50 N/C due to east

Voltage measured at a point P is 80 V

Let us assume point P is at a distance of x m

therefore

$E\cdot x=V$

$50\cdot x=80$

x=1.6 m

Now Potential directly 1 m west of P

therefore distance is 1.6 -1 =0.6 m

Thus potential is

$E\cdot 0.6=50\cdot 0.6=30 V$