4 A rubber-coated wire is bent in the shape of a rigid sinusoid and then its ends P and Q are electrically connected with the help of a straight conducting wire making a closed loop of total resistance R and inductance L. The amplitude of the sinusoid is ao. On the right of the line AA is a region of uniform magnetic field of induction B pointing perpendicular to the plane of the wire loop. The loop is made to move along the line PQ with a constant velocity v to enter the magnetic field. If one cycle of the sinusoid enters the region of magnetic field in time 1, find average thermal power generated in the loop while it is entering the region of magnetic field. Ans: (Buao)? RT? .(*u^-L לאי2c 2.

4 A rubber-coated wire is bent in the shape of a rigid sinusoid and then its ends P and Q are electrically connected with the help of a straight conducting wire making a closed loop of total resistance R and inductance L. The amplitude of the sinusoid is ao. On the right of the line AA is a region of uniform magnetic field of induction B pointing perpendicular to the plane of the wire loop. The loop is made to move along the line PQ with a constant velocity v to enter the magnetic field. If one cycle of the sinusoid enters the region of magnetic field in time 1, find average thermal power generated in the loop while it is entering the region of magnetic field. Ans: (Buao)? RT? .(*u^-L לאי2c 2.