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JEE Advanced Capacitors questions with solutions

Capacitance, dielectrics, combinations of capacitors and stored energy. 12 questions from our 2017–2025 JEE Advanced pattern papers, from the Class 12 Physics syllabus. Each has the answer and a full solution.

Also practise: Capacitors for JEE Main

JEE Advanced 2025

A parallel plate capacitor has plate area A, plate separation d and vacuum between the plates; its capacitance is C0 and it is connected to a battery…JEE Advanced 2025 Paper 1 · hard
A parallel-plate capacitor has plate area A and separation d; its capacitance with air between the plates is C0. A dielectric slab of constant K=3…JEE Advanced 2025 Paper 2 · hard

JEE Advanced 2024

Paragraph 1: A parallel-plate capacitor has square plates of side 10 cm separated by d=2.0 mm of air. It is connected permanently across a battery of…JEE Advanced 2024 Paper 2 · 2-question set

JEE Advanced 2023

A capacitor C1=2 muF is charged to 100 V and a capacitor C2=4 muF is charged to 60 V. They are then joined with the positive plate of one connected…JEE Advanced 2023 Paper 1 · medium

JEE Advanced 2022

A 2 muF capacitor charged to 120 V and a 3 muF capacitor charged to 60 V are joined through a resistor, positive plate of the first to the negative…JEE Advanced 2022 Paper 1 · hard

JEE Advanced 2021

A parallel-plate capacitor with plate area A and separation d has capacitance C0 and stays connected to a battery of emf V0. A dielectric slab of…JEE Advanced 2021 Paper 2 · medium

JEE Advanced 2020

A parallel-plate air capacitor of capacitance C is charged to a potential difference V0 and then disconnected from the battery. It is connected…JEE Advanced 2020 Paper 1 · medium
A parallel-plate air capacitor of capacitance C0 is charged to potential V by a battery, and the battery stays connected. A dielectric slab of…JEE Advanced 2020 Paper 2 · easy

JEE Advanced 2019

A capacitor of capacitance 3 muF is charged to 120 V and another of capacitance 6 muF is charged to 30 V. They are joined through a resistor so that…JEE Advanced 2019 Paper 2 · medium

JEE Advanced 2018

The plates of a parallel-plate capacitor, each of area 0.10 m^2 and separated by 2.0 mm in air, remain connected to a 100 V battery. A dielectric…JEE Advanced 2018 Paper 2 · hard

JEE Advanced 2017

A parallel-plate air capacitor of capacitance 100 pF is charged to 200 V and then disconnected from the source. A dielectric slab of dielectric…JEE Advanced 2017 Paper 2 · easy

Other Physics topics

Atoms, Nuclei and Dual Nature of Radiation 35 Calorimetry and Heat Transfer 17 Current Electricity 13 Electromagnetic Induction and Alternating Current 25 Electrostatics 15 Fluid Mechanics, Elasticity and Surface Tension 21 Gravitation 13 Kinematics and Laws of Motion 11 Magnetic Effects of Current 34 Ray and Wave Optics 21 Rotational Motion 31 Simple Harmonic Motion 15 Thermodynamics and Kinetic Theory of Gases 23 Units and Measurements 8 Waves and Sound 28 Work, Energy and Power 9