Electrostatic Potential and Capacitance: Class 12 Physics (CBSE) important questions and practice
Electrostatic Potential and Capacitance is chapter 2 of 14 in CBSE Class 12 Physics. Below are the topics the paper draws from, the question types that come up again and again, and a free practice test on this chapter alone.
Topics in this chapter
- Electrostatic potential and potential due to a point charge and a dipole
- Equipotential surfaces and relation between field and potential
- Potential energy of a system of charges and of a dipole in a field
- Conductors, dielectrics and polarisation
- Capacitors: parallel plate capacitor with and without dielectric
- Combination of capacitors and energy stored in a capacitor
What examiners usually ask
- Derive the expression for the capacitance of a parallel plate capacitor with a dielectric slab of thickness t between the plates
- Derive the expression for the energy stored in a capacitor; what happens to the energy when two charged capacitors are connected in parallel?
- Draw equipotential surfaces for a uniform field and a point charge and explain why they are perpendicular to field lines
Exam tip
The dielectric-slab capacitance derivation and the common-potential energy-loss problem (energy lost as heat when capacitors are connected) are asked repeatedly; keep the formulas U = Q^2/2C for isolated and U = CV^2/2 for battery-connected cases distinct.
Electrostatic Potential and Capacitance on other boards and exams
Frequently asked questions
What are the important questions from Electrostatic Potential and Capacitance for CBSE Class 12?
The question types listed above repeat most often in CBSE Class 12 Physics papers for this chapter. Practise them with the chapter test and then attempt them inside a full previous-year paper under time.
Is Electrostatic Potential and Capacitance in the CBSE Class 12 Physics syllabus?
Yes. Electrostatic Potential and Capacitance is part of the current CBSE Class 12 Physics syllabus, as listed on this site from the prescribed textbook.
Can I practise Electrostatic Potential and Capacitance MCQs in Hindi?
Yes. The chapter test and explanations are available in Hindi and English, with an AI doubt solver for any question.