JEE Main 2019 — Electromagnetic Induction Question with Solution
From: JEE Main 2019 (Online) 12th January Evening Slot
Question
A 10 m long horizontal wire extends from North East to South West. It is falling with a speed of 5.0 ms–1, at right angles to the horizontal component of the earth's magnetic field of 0.3 10–4 Wb/m2. The value of the induced emf in wire is :
Choose an option
Show full solutionCorrect option: D
Correct answer
D1.1 10–3 V
Step-by-step explanation
Induied emf = Bv sin 45o
= 0.3 104 5 10 sin 45o
= 1.1 103 V
= 0.3 104 5 10 sin 45o
= 1.1 103 V
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This is a previous-year question from JEE Main 2019, covering the Electromagnetic Induction chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.