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Force on a Moving Charge for JEE: 36 solved questions

Real JEE paper questions on force on a moving charge, part of moving charges and magnetism. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 2003 to 2026. No sign-in needed to read them.

What this topic asks

Lorentz force and work done — 27 questions
Crossed electric and magnetic fields — 9 questions

All 36 questions with solutions

A proton moving with a constant velocity passes through a region of space without any change in its velocity.… JEE Main 27th Jan 1st Shift 2024
A velocity selector consists of electric field E⃗ = Ek̂ and magnetic field B⃗ = Bȷ̂ with B = 12 mT. The value… JEE Main 26th July 2nd Shift 2022
An electron is moving along +x direction with a velocity of 6 × 10⁶ m s⁻¹. It enters a region of uniform elec… JEE Main 6th Sept 1st Shift 2020
A particle having the same charge as of electron moves in a circular path of radius 0.5 cm under the influenc… JEE Main 9th Jan 2nd Shift 2019
In a certain region static electric and magnetic fields exist. The magnetic field is given by B⃗ = B₀(ı̂ + 2ȷ… JEE Main Online 2017
A charged particle with charge q enters a region of constant, uniform and mutually orthogonal fields E⃗ and B… JEE Main 2007
A particle of charge -16 × 10⁻¹⁸ coulomb moving with velocity 10 m s⁻¹ along the x-axis enters a region where… JEE Main 2003
A proton is moving undeflected in a region of crossed electric and magnetic fields at a constant speed of 2×1… JEE Main 22nd Jan 2nd Shift 2025
An electron with kinetic energy 5 eV enters a region of uniform magnetic field of 3 μT perpendicular to its d… JEE Main 8th April 1st Shift 2024
A particle having charge 10⁻⁹ C moving in x-y plane in fields of 0.4ȷ̂ N/C and 4×10⁻³k̂ T experiences a force… JEE Main 2nd April 2nd Shift 2026
A particle of charge q and mass m is projected from origin with an initial velocity v⃗=((v₀)/(√2)x̂+(v₀)/(√2)… JEE Main 5th April 2nd Shift 2026
A current carrying solenoid is placed vertically and a particle of mass m with charge Q is released from rest… JEE Main 21st Jan 1st Shift 2026
Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R). Ass… JEE Main 24th Jan 2nd Shift 2025
An electron is projected with uniform velocity along the axis inside a current carrying long solenoid. Then JEE Main 4th April 1st Shift 2024
The electrostatic force (F⃗₁) and magnetic force (F⃗₂) acting on a charge q moving with velocity v⃗ can be wr… JEE Main 5th April 2nd Shift 2024
An electron is allowed to move with constant velocity along the axis of current carrying straight solenoid. A… JEE Main 11th April 2nd Shift 2023
An electron is moving along the positive x-axis. If the uniform magnetic field is applied parallel to the neg… JEE Main 13th April 2nd Shift 2023
A charge particle is moving in a uniform magnetic field (2ı̂ + 3ȷ̂) T. If it has an acceleration of (αı̂ - 4ȷ… JEE Main 26th July 1st Shift 2022
Given below are two statements: Statement-I: The electric force changes the speed of the charged particle and… JEE Main 29th June 2nd Shift 2022
The magnetic field vector of an electromagnetic wave is given by B = B₀(ı̂ + ȷ̂)/(√2)cos(kz - ω t) where ı̂,… JEE Main 31st Aug 2nd Shift 2021
A charge Q is moving dl⃗ distance in the magnetic field B⃗. Find the value of work done by B⃗. JEE Main 16th March 2nd Shift 2021
A proton, a deuteron and an α-particle are moving with same momentum in a uniform magnetic field. The ratio o… JEE Main 25th Feb 1st Shift 2021
A charged particle carrying charge 1 μC is moving with velocity (2ı̂ + 3ȷ̂ + 4k̂) m s⁻¹. If an external magne… JEE Main 3rd Sept 1st Shift 2020
A particle moving in the xy plane experiences a velocity dependent force F⃗ = k(v_yı̂ + vₓȷ̂), where vₓ and v… JEE Main 6th Sept 2nd Shift 2020
Proton with kinetic energy of 1 MeV moves from south to north. It gets an acceleration of 10¹² m/s² by an app… JEE Main 8th Jan 1st Shift 2020
A particle of mass m and charge q is in an electric and magnetic field given by E⃗ = 2ı̂ + 3ȷ̂; B⃗ = 4ȷ̂ + 6k… JEE Main 11th Jan 2nd Shift 2019
A negative test charge is moving near a long straight wire carrying a current. The force acting on the test c… JEE Main Online 2017
The magnetic force acting on charged particle of charge 2 μC in a magnetic field of 2 T acting in y-direction… JEE Main Online 2012
An electric charge +q moves with velocity v⃗ = 3ı̂ + 4ȷ̂ + k̂, in an electromagnetic field given by: E⃗ = 3ı̂… JEE Main Re-Scheduled 2011
A charged particle moves through a magnetic field perpendicular to its direction. Then JEE Main 2007
A particle of mass M and charge Q moving with velocity v describes a circular path of radius R when subjected… JEE Main 2003
A 1 μC charge moving with velocity v⃗=(ı̂-2ȷ̂+3k̂) m/s in the region of magnetic field B⃗=(2ı̂+3ȷ̂-5k̂) T. Th… JEE Main 2nd April 1st Shift 2026
The charged particle moving in a uniform magnetic field of (3ı̂+2ȷ̂) T has an acceleration (4ı̂-x/2ȷ̂) m/s².… JEE Main 5th April 1st Shift 2026
A charge of 4.0 μC is moving with a velocity of 4.0×10⁶ m s⁻¹ along the positive y-axis under a magnetic fiel… JEE Main 29th Jan 2nd Shift 2024
An electron moves through a uniform magnetic field B⃗=B₀ı̂+2B₀ȷ̂ T. At a particular instant of time, the velo… JEE Main 31st Jan 1st Shift 2024
Two long parallel conductors S₁ and S₂ are separated by a distance 10 cm and carry currents of 4 A and 2 A re… JEE Main 27th June 2nd Shift 2022

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