Two thick rods `AB, CD` are placed parallel to each other at a distance `l`. their ends are joined to a resistance `R`. A magnetic field of induction `B` is applied perpendicular to the plane contaning the rods. If the rods are vertical, the terminal uniform velocity of the rod `PQ` of mass `m` is given by

A conducting rod of length L rotates with angular speed omega in a uniform magnetic field of induction B which is perpendicular to its motion .The induceed emf developed between the two ends of the rod is

Two parallel vertical metallic bars X X^(1) and Y Y^(1) , of negligible resistance and separated by a length 'l' , are as shown in Fig. The ends of the bars are joined by resistance R_(1) and R_(2) . A uniform magnetic field of induction B exsits in space normal to the plane of the bars. A horizontal metallic rod PQ of mass m starts falling vertically, making contact with the bars. It is oberved that in the steady state the powers dissipated in the resistance R_(1) and R_(2) and the terminal velocity attained by the rod PQ .

A copper rod of mass m slides under gravity on two smooth parallel rails l distance apart set at an angle theta to the horizontal. At the bottom, the rails are joined by a resistance R . There is a uniform magnetic field perpendicular to the plane of the rails. the terminal valocity of the rod is

A copper rod of mass m slides under gravity on two smooth parallel rails l distance apart set at an angle theta to the horizontal. At the bottom, the rails are joined by a resistance R . There is a uniform magnetic field perpendicular to the plane of the rails. the terminal valocity of the rod is

As shown in the figure, a conducting rod of length I, mass m and resistance R falls through a magnetic field vecB in a plane perpendicular to plane of figure. Find terminal velocity of rod.

A rod PQ is connected to the capacitor plates. The rod is placed in a magnetic field (B) directed downwards perpendicular to the plane of the paper. If the rod is pulled out of magnetic field with velocity vec(v) as shown in Figure.

A rod PQ is connected to the capacitor plates. The rod is placed in a magnetic field (B) directed downwards perpendicular to the plane of the paper. If the rod is pulled out of magnetic field with velocity vec(v) as shown in Figure.

A rod of length l is rotated about its one end, perpendicular to a magnetic field of induction B What is the e.m.f induced in the rod

Two parallel vertical metallic bars XX.and YY., of negligible resistance and separated by a length .l., are as shown in Fig. The ends of the bars are joined by resistance R_(1) and R_(2) . A uniform magnetic field of induction B exists in space normal to the plane of the bars. A horizontal metallic rod PQ of mass m starts falling vertically, making contact with the bars. It is observed that in the steady state the powers dissipated in the resistance R_(1) and R_(2) are P_(1) and P_(2) respectively. Find an expression for R_(1), R_(2) and the terminal velocity attained by the rod PQ