Consider the situation shown in . The wire PQ has mass m, resistance r and can slide on the smooth, horizontal parallel rails separted by a distance l. The resistance of the rails is negligible. A uniform magnetic field B exists in the rectangualr region and a resistance R connects the rails outsided the field region At t= 0, the wire PQ is puched towards right with a speed `v_0`. find (a) the current in the loop at an instant when the speed of the wire PQ is v, (b) the acceleration of the wire at this instatn, (c ) the velocity v as a function of x and (d) the maximum distance the wire will move.
(##HCV_VOL2_C38_E01_073_Q01##)

Options

A. `(2B^(2)l^(2)v)/(m(R + r))` towards left
B. `(B^(2)l^(2)v)/(m(R + r))` towards right
C. `(B^(2)l^(2)v)/(m(R + r))` towards left
D. none of these

Answer

c