Science (English Medium) इयत्ता १२ - CBSE Question Bank Solutions for Physics

Obtain the expression for the energy stored in a capacitor connected across a dc battery.

Do free electrons travel to region of higher potential or lower potential?

Prove that, if an insulated, uncharged conductor is placed near a charged conductor and no other conductors are present, the uncharged body must be intermediate in potential between that of the charged body and that of infinity.

A parallel plate capacitor (A) of capacitance C is charged by a battery to voltage V. The battery is disconnected and an uncharged capacitor (B) of capacitance 2C is connected across A. Find the ratio of total electrostatic energy stored in A and B finally and that stored in A initially.