Practice portal › Electromagnetic Induction › Lenz's Law

Assertion A : A bar magnet dropped through a metallic cylindrical pipe takes more time to come down compared to a non-magnetic bar with same geometry and mass. Reason R : For the magnetic bar, eddy currents produced in the metallic pipe oppose the motion of the magnetic bar. In the light of the above statements, choose the most appropriate

Asked in JEE Main 11th April 2nd Shift 2023 · Lenz's law in motion and damping

• (1) Both A and R are correct and R is NOT the correct explanation of A
• (2) Both A and R are correct but R is the correct explanation of A
• (3) A is incorrect but R is correct
• (4) A is correct but R is incorrect

Step-by-step solution

Why the other options are wrong

• (1) R is not merely true alongside A, it is the mechanism
• (3) A is correct, as any copper-pipe demonstration shows
• (4) R is correct

Reading this solution needs no sign-in. You only sign in to practise against the clock and keep your progress.