A conducting metal circular-wire-loop of radius r is placed perpendicular to amagnetic field which varies with time as B=B_0e^{-1/\tau} where B_0 and \tau are constants, at time t=0.If the resistance of the loop is R then the heat generated in the loop after a long time t\to\infty is : [Main 10 Apr 2016]

Correct Answer is : π2r4B022τR

JEE Main 10 April 2016 Paper

Section: Physics

Question : 17 of 90

Marks: +1, -0

A conducting metal circular-wire-loop of radius r is placed perpendicular to amagnetic field which varies with time as B=B0e−

where B0 and τ are constants, at time t=0.If the resistance of the loop is R then the heat generated in the loop after a long time t→∞ is :

[Main 10 Apr 2016]

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