Practice portal › JEE › Electromagnetic Induction

Rotational Motional EMF for JEE: 10 solved questions

Real JEE paper questions on rotational motional emf, part of electromagnetic induction. 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

• Rotating rods, discs and wheels — 10 questions

All 10 questions with solutions

• A metallic rod of length 'L' is rotated with an angular speed of 'ω' normal to a uniform magnetic field 'B' a… JEE Main 24th Jan 1st Shift 2023
• A metallic conductor of length 1 m rotates in a vertical plane parallel to east-west direction about one of i… JEE Main 26th June 2nd Shift 2022
• A metal conductor of length 1 m rotates vertically about one of its ends at angular velocity 5 radian per sec… JEE Main 2004
• A simple pendulum made of mass 10 g and a metallic wire of length 10 cm is suspended vertically in a uniform… JEE Main 23rd Jan 1st Shift 2026
• A ceiling fan having 3 blades of length 80 cm each is rotating with an angular velocity of 1200 rpm. The magn… JEE Main 30th Jan 1st Shift 2024
• A metallic rod of length 'l' is tied to a string of length 2l and made to rotate with angular speed ω on a ho… JEE Main 2013
• A rod of length 60 cm rotates with a uniform angular velocity 20 rad s⁻¹ about its perpendicular bisector, in… JEE Main 4th April 2nd Shift 2024
• A metal rod of length L rotates about one end at origin with a uniform angular velocity ω. The magnetic field… JEE Main 5th April 2nd Shift 2025
• A uniform magnetic field of 0.4 T acts perpendicular to a circular copper disc 20 cm in radius. The disc is h… JEE Main 28th Jan 2nd Shift 2025
• A 20 cm long metallic rod is rotated with 210 rpm about an axis normal to the rod passing through its one end… JEE Main 15th April 1st Shift 2023