JEE Main 2021PhysicsMagnetic Properties of MatterMediumMCQ

JEE Main 2021 — Magnetic Properties of Matter Question with Solution

JEE Main 2021 (26 Feb Shift 2)

Question

An aeroplane, with its wings spread 10 m, is flying at a speed of 180 km h-1 in a horizontal direction. The total intensity of earth's field at that part is 2.5×10-4 Wb m-2 and the angle of dip is 60°. The emf induced between the tips of the plane wings will be

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Show full solutionCorrect option: A
Correct answer
A108.25 mV

Step-by-step explanation

∈=B→V→L→=BVLsinθ

=2.5×10-4 T180×518 m s-110 msin60°

=108.25×10-3 V

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About this question

This is a previous-year question from JEE Main 2021, covering the Magnetic Properties of Matter 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.