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JEE Advanced2024PhysicsElectromagnetic InductionActual

A region in the form of an equilateral triangle (in x-y plane) of height L has a uniform magnetic field B pointing in the +z -direction. A conducting loop PQR , in the form of an equilateral triangle of the same height L , is placed in the x-y plane with its vertex P at x=0 in the orientation shown in the figure. At t=0 , the loop starts entering the region of the magnetic field with a uniform velocity v along the +x

Correct answer

0

Step-by-step solution

For, 0 to L = B _ eff v = B x 3 v For, L to 2 ~L aligned & |e m f|=B ( L 3 - x₀ 3 ) v-B 2 x₀ 3 v & = B v L 3 - 3 Bvx ₀ & = Bv [ L 3 - 3 (x-L) ] & = B v 3 [L-3 x +3 ~L ] & = B v 3 [4 L-3 x ] & at x= 4 L 3 & e m f=0 & aligned

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