. A conducting bar pulled with a constant speed v on a smooth conducting rail. The region has a steady magnetic field of induction B as shown in the fig


A conducting bar pulled with a constant speed v on a smooth conducting rail. The region has a steady magnetic field of induction B as shown in the figure. If the speed of the bar is doubled then the rate of heat dissipation will
                                   

  • (A):Remain constant
  • (B):Become quarter of the initial value
  • (C):Become four fold
  • (D):Get doubled

Best Answer

Correct Answer:

(C): Become four fold

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