What is a capacitor? Explain its principle.

Important Questions on Electrostatic Potential and Capacitance

MEDIUM

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 2 - Electrostatic Potential and Capacitance>Text Based Exercises>Q 34

Derive an expression for the capacitance of a parallel plate capacitor.

EASY

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 2 - Electrostatic Potential and Capacitance>Text Based Exercises>Q 35

Distinguish between polar and non-polar dielectrics. Give one example of each.

EASY

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 2 - Electrostatic Potential and Capacitance>Text Based Exercises>Q 36

Three capacitors of capacitances $C_1, C_2$ and $C_3$ are connected in series. Find their equivalent capacitance.

MEDIUM

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 2 - Electrostatic Potential and Capacitance>Text Based Exercises>Q 37

Three capacitors of capacitances $C_1, C_2$ and $C_3$ are connected in parallel. Find their equivalent capacitance.

EASY

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 2 - Electrostatic Potential and Capacitance>Text Based Exercises>Q 38

Write the expression for the electrostatic energy stored in a capacitor of capacitance $‘C’$ and having charge $‘Q’$. How will the energy stored inside the capacitor be affected when it is completely filled with a dielectric material of dielectric constant $‘k’$?

EASY

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 2 - Electrostatic Potential and Capacitance>Text Based Exercises>Q 38

Write the expression for the electrostatic energy stored in a capacitor of capacitance $‘C’$ and having charge $‘Q’$. How will the electric field inside the capacitor be affected when it is completely filled with a dielectric material of dielectric constant $‘k’$?

MEDIUM

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 2 - Electrostatic Potential and Capacitance>Text Based Exercises>Q 39

If two charged conductors are touched mutually and then separated, prove that the charges on them will be divided in the ratio of their capacitances.

MEDIUM

12th CBSE

IMPORTANT

New Simplified Physics (Vol 1) For Class 12>Chapter 2 - Electrostatic Potential and Capacitance>Text Based Exercises>Q 40

Two capacitors with capacity $C_1$ and $C_2$ are charged to potential $V_1$ and $V_2$ respectively and then connected in parallel. Calculate the common potential across the combination, the charge on each capacitor, the electrostatic energy stored in the system and the change in the electrostatic energy from its initial value.