A conducting wire `xy` of lentgh `l` and mass `m` is sliding without friction on vertical conduction rails `ab` and `cd` as shown in figure. A uniform magnetic field `B` exists perpendicular to the plane of the rails, `x` moves with a constant velocity of

Figure shows a wire sliding on two parallel, conducting rails placed at a separation L . A magnetic field B exists in a direction perpendicular to the plane of the rails. What force is necessary to keep the wire moving at a constant velocity V ?

A wire cd of length l and mass m is sliding without friction on conducting rails ax and by as shown. The verticle rails are connected to each other with a resistance R between a and b . A uniform magnetic field B is applied perpendicular to the plane abcd such that cd moves with a constant velocity of

A V-shaped conducting wire is moved inside a magnetic field as shown in figure. Magnetic fiel d is perpendicular to paper inwards. Then

Two parallel long smooth conducting rails separated by a distance l are connected by a movable conducting connector of mass m . Terminals of the rails are connected by the resistor R and the capacitor C as shown in figure. A uniform magnetic field B perpendicular to the plane of the rail is switched on. The connector is dragged by a constant force F . Find the speed of the connector as a function of time if the force F is applied at t = 0 . Also find the terminal velocity of the connector.

Two parallel vertical metallic rails AB and CD are separated by 1m . They are connected at the two ends by resistances R_1 and R_2 as shown in the figure. A horizontal metallic bar l of mass 0.2 kg slides without friction, vertically down the rails under the action of gravity. There is a uniform horizontal magnetic field of 0.6 T perpendicular to the plane of the rails. It is observed that when the terminal velocity is attained, the powers dissipated in R_1 and R_2 are 0.76W and 1.2W respectively (g=9.8m//s^2) The terminal velocity fo the bar L will be

Two parallel vertical metallic rails AB and CD are separated by 1m . They are connected at the two ends by resistances R_1 and R_2 as shown in the figure. A horizontal metallic bar l of mass 0.2 kg slides without friction, vertically down the rails under the action of gravity. There is a uniform horizontal magnetic field of 0.6 T perpendicular to the plane of the rails. It is observed that when the terminal velocity is attained, the powers dissipated in R_1 and R_2 are 0.76W and 1.2W respectively (g=9.8m//s^2) The value of R_1 is

Two parallel vertical metallic rails AB and CD are separated by 1m . They are connected at the two ends by resistances R_1 and R_2 as shown in the figure. A horizontal metallic bar l of mass 0.2 kg slides without friction, vertically down the rails under the action of gravity. There is a uniform horizontal magnetic field of 0.6 T perpendicular to the plane of the rails. It is observed that when the terminal velocity is attained, the powers dissipated in R_1 and R_2 are 0.76W and 1.2W respectively (g=9.8m//s^2) The value of R_2 is