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Physics Question on electrostatic potential and capacitance

In a certain region of space with volume 0.2 m30.2 \,m^3, the electric potential is found to be 5 V5\,V throughout. The magnitude of electric field in this region is:

A

zero

B

0.5 N/C

C

1 N/C

D

5 N/C

Answer

zero

Explanation

Solution

Since electric potential is found throughout constant, hence electric field,
E=−dVdt=0E=-\frac{dV}{dt}=0