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The figure shows arectangular conducting...

The figure shows arectangular conducting frame MNOP of resistance R placed partly in a perpendicular magnetic field `vecB` and moved with velocity `vecV` as shown in the figure.
Obtain the expressions for the
(a) force acting on the arm 'ON' and its direction, and
(b) power required to move the frame to get a steady emf induced between the arms MN and PO.

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