For a parallel-plate capacitor that carries a charge and has a potential difference…

PHYSICS · Single correct · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance

Problem

For a parallel-plate capacitor that carries a charge

Q

and has a potential difference

\Delta V

across its plates, which of the following expressions gives the energy

U_{C}

stored in the capacitor? (a)

2\,Q\,\Delta V

(b)

Q\,\Delta V

(c)

\dfrac{1}{2}Q\,\Delta V

(d)

\dfrac{1}{4}Q\,\Delta V