Two magnetic fields exits in the two regions as shown in . A loop abcd of `40 xx 10 cm` id placed in the field. The resistance per unit length of the loop is `r = 2Omegacm^(-1)`. All of a sudden, the loop is given a velocity `v_(0) = 20cm s^(-1)` towards roght. What is the potential difference `V_(c ) - V_(b)` ?

Magnetic field in a region is given by B=B_0xhatk . Two loops each of side a is placed in the magnetic region in the xy-plane with one of its sides on x-axis. If F_1 is the force on loop 1 and d F_2 be the force on loop 2, then

In Fig. there is a frame consisting of two square loops having resistors and inductors as shown. This frame is placed in a uniform but time-varying magnetic field in such a way that one of the loops is placed in crossed magentic field and the other is placed in dot magnetic field. Both magnetic fields are perpendicular to the planes of the loops. If the magnetic field is given by B = (20 + 10 t) Wb m^(-2) in both regions [l = 20 cm, b = 10 cm , and R = 10 Omega , L = 10 H ), The direction in induced current in the bigger loop will be

In Fig. there is a frame consisting of two square loops having resistors and inductors as shown. This frame is placed in a uniform but time-varying magnetic field in such a way that one of the loops is placed in crossed magentic field and the other is placed in dot magnetic field. Both magnetic fields are perpendicular to the planes of the loops. If the magnetic field is given by B = (20 + 10 t) Wb m^(-2) in both regions [l = 20 cm, b = 10 cm , and R = 10 Omega , L = 10 H ), The direction in induced current in the bigger loop will be

In Fig. there is a frame consisting of two square loops having resistors and inductors as shown. This frame is placed in a uniform but time-varying magnetic field in such a way that one of the loops is placed in crossed magentic field and the other is placed in dot magnetic field. Both magnetic fields are perpendicular to the planes of the loops. If the magnetic field is given by B = (20 + 10 t) Wb m^(-2) in both regions [l = 20 cm, b = 10 cm , and R = 10 Omega , L = 10 H ), The current in the frame as a funtion of time will be

In Fig. there is a frame consisting of two square loops having resistors and inductors as shown. This frame is placed in a uniform but time-varying magnetic field in such a way that one of the loops is placed in crossed magentic field and the other is placed in dot magnetic field. Both magnetic fields are perpendicular to the planes of the loops. If the magnetic field is given by B = (20 + 10 t) Wb m^(-2) in both regions [l = 20 cm, b = 10 cm , and R = 10 Omega , L = 10 H ), The current in the frame as a funtion of time will be

The magnetic field in a region is given by B=B_0(1+x/a)hat k .A square loop of edge-length d is placed with its edges along the x and y-axes. The loop is moved with a constant velocity v=v_0hat i .The emf induced in the loop is:

A rectangular loop of area 15xx40cm^2 is placed in a magnetic field of 0.6( Wb)/m^2 . Calculate the magnetic flux linked with the loop when the plane of the loop is perpendicular to the field.

A circular loop of area 1cm^2 , carrying a current of 10 A , is placed in a magnetic field of 0.1 T perpendicular to the plane of the loop. The torque on the loop due to the magnetic field is

A circular loop of area 1cm^2 , carrying a current of 10 A , is placed in a magnetic field of 0.1 T perpendicular to the plane of the loop. The torque on the loop due to the magnetic field is