The arm `PQ` of the rectangular conductor is moved from `x=0`, outwards in the uniform magnetic ...

Question From - NCERT Physics Class 12 Chapter 06 Question – 008 ELECTROMAGNETIC INDUCTION CBSE, RBSE, UP, MP, BIHAR BOARD

QUESTION TEXT:-
The arm `PQ` of the rectangular conductor is moved from `x=0`, outwards in the uniform magnetic field which extends from `x=0` to `x=b` and is zero for `x gt b` as shown. Only the arm `PQ` possess substantial resistance `r`. Consider the situation when the arm `PQ` is pulled outwards from `x = 0` to `x = 2b`, and is then moved back to `x = 0` with constant speed `v`. Obtain expression for the flux, the induced emf, the force necessary to pull the arm and the power dissipated as Joule heat. Sketch the variation of these quantities with distance.

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