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Motion of a Charge in an Electric Field for JEE: 20 solved questions

Real JEE paper questions on motion of a charge in an electric field, part of electric charge and properties. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2004 to 2026. No sign-in needed to read them.

What this topic asks

• Deflection and projectile motion — 11 questions
• Balanced drop and Millikan — 5 questions
• Pendulum and suspended bob — 4 questions

All 20 questions with solutions

• A simple pendulum has a bob of mass m and charge q. The pendulum string has negligible mass. When a uniform h… JEE Main 22nd Jan 1st Shift 2026
• An electron is made to enter symmetrically between two parallel and equally but oppositely charged metal plat… JEE Main 22nd Jan 1st Shift 2025
• A uniform electric field E=(8m)/e V m⁻¹ is created between two parallel plates of length 1 m (where m is the… JEE Main 28th July 2nd Shift 2022
• A vertical electric field of magnitude 4.9×10⁵ N C⁻¹ just prevents a water droplet of mass 0.1 g from falling… JEE Main 24th June 1st Shift 2022
• A positively charged particle of mass 100 mg is thrown in the direction opposite to a uniform electric field… JEE Main 29th June 1st Shift 2022
• In Millikan's oil drop experiment, what is the viscous force acting on an uncharged drop of radius 2.0×10⁻⁵ m… JEE Main 27th Aug 1st Shift 2021
• An oil drop of radius 2 mm with a density of 3 g cm⁻³ is held stationary under a constant electric field of 3… JEE Main 18th March 1st Shift 2021
• A charged particle (mass m and charge q) moves along the X-axis with velocity v₀. When it passes through the… JEE Main 2nd Sept 1st Shift 2020
• A small point mass carrying some positive charge on it is released from the edge of a table. There is a unifo… JEE Main 2nd Sept 2nd Shift 2020
• A particle of charge q and mass m is subjected to an electric field E=E₀(1-ax²) in the x-direction, where a a… JEE Main 4th Sept 2nd Shift 2020
• A particle of mass m and charge q is released from rest in a uniform electric field. If there is no other for… JEE Main 8th Jan 2nd Shift 2020
• The bob of a simple pendulum has mass 2 g and a charge of 5.0 μC. It is at rest in a uniform horizontal elect… JEE Main 8th April 1st Shift 2019
• A simple pendulum of length L is placed between the plates of a parallel plate capacitor having electric fiel… JEE Main 10th April 2nd Shift 2019
• A body of mass M and charge q is connected to a spring of spring constant k. It is oscillating along the x-di… JEE Main Online 2018
• A charged oil drop is suspended in a uniform field of 3×10⁴ V/m so that it neither falls nor rises. The charg… JEE Main 2004
• A uniformly charged wall provides a uniform electric field of 2×10⁴ N C⁻¹ normally. A charged particle of mas… JEE Main 1st Feb 2nd Shift 2024
• A stream of positively charged particles having q/m=2×10¹¹ C kg⁻¹ and velocity ⃗v₀=3×10⁷ ̂i m s⁻¹ is deflecte… JEE Main 24th Jan 1st Shift 2023
• A uniform electric field of 10 N C⁻¹ is created between two parallel charged plates as shown in the figure (h… JEE Main 25th Jan 1st Shift 2023
• A body having specific charge 8 μC g⁻¹ is resting on a frictionless plane at a distance of 10 cm from a wall,… JEE Main 20th July 1st Shift 2021
• Two metal plates A and B are kept horizontally with a separation of (12)/π cm, with plate A on the top. An at… JEE Main 2nd April 2nd Shift 2026