JEE Main 2026 Physics question

PhysicsElectromagnetic InductionJEE Main 2026

A circular loop of radius is placed in uniform magnetic field of directed perpendicular to plane of loop. The loop is converted into a square loop in . The EMF induced in the loop is .

Answer: 4

Solution

induced EMF

circumference

side length of square loop

Δφ = -

= (.2) ( × - 49π ) ×

=

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Question ID VK-001336