Question

A capacitor of capacitance C is charged to a potential V. The flux of the electric field through a closed surface enclosing the capacitor is
(a) CVε0
(b) 2 CVε0
(c) CV2ε0
(d) zero.

Answer 1

(d) Through a closed surface enclosing the capacitor, the flux of the electric field is zero.

Explanation:

• Capacitance is the system’s energy for storing electric charge. It is the ratio of the electric charge’s change in a system to the corresponding change. This is in its electric potential.
• Please note, the plates of the capacitor have equal and opposite charges which cancel out each other. Therefore, the net charge enclosed is zero. Hence, the electric flux is also zero.