The arm PQ of the rectangular conductor is moved from x=0, outwards The uniform magnetic field is perpendicular to - Physics - Electromagnetic Induction

Question

The arm PQ of the rectangular conductor is moved from x=0,
outwards The uniform magnetic field is perpendicular to plane and
exerts from x=0 to x=b and is 0 for x > b Only the arm PQ
possess substantial resistance r Consider the situation when the
arm PQ is pulled outward from x = 0 to x= 2b, and is then moved
back to x=0 with constant speed v Obtain expression for the flux,
induced emf, the force necessary to pull the arm and the power
dissipated as joule heat Sketch the variation of these quantities
with distance

Somnath physics · Accepted Answer

The arm PQ of the rectangular conductor is moved from x = 0, outwards. The uniform magnetic field is perpendicular to plane and exerts from x = 0 to x = b and is 0 for x > b. Only the arm PQ possess substantial resistance r. Consider the situation when the arm PQ is pulled outward from x = 0 to x = 2b, and is then moved back to x=0 with constant speed v. Obtain expression for the flux, induced e.m.f., the force necessary to pull the arm and the power dissipated as joule heat. Sketch the variation of these quantities with distance.