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Question 11: NCERT Solutions for 12th Class Physics: Chapter 6-Electromagnetic Induction

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Question 11: NCERT Solutions for 12th Class Physics: Chapter 6-Electromagnetic Induction

Suppose the loop shown in figure is stationary but the current feeding the electromagnet that produces the magnetic field is gradually ? reduced so that field decreases from its initial value of 0.3 T at the rate of 0.02 T s-1. If the cut is joined and the loop has a resistance of 1.6Ω, how much power is dissipated by the loop as heat? What is the source of this power?

 

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1 Answer

  1. Solution:
    Here area is constant but the magnetic field is reducing at a constant rate.

    Source of the power is work done in changing magnetic field.

    Check the complete chapter with solutions.

    NCERT Solutions for 12th Class Physics: Chapter 6-Electromagnetic Induction