`AB` is a resistanceless conducting rod which forms a diameter of a conducting ring of radius `r` rotating in a uniform magnetic field `B` as shown in figure. The resistance `R_(1)` and `R_(2)` do not rotate. Then the current through the resistor `R_(1)` is

A conducting ring is moving from left to right through a uniform magnetic field, as shown in the figure. In which regions is there an induced current in the ring?

A non conducting ring of radius R is charged as shown in figure : Figure

A conducting ring of radius R is being moved in a region of uniform magnetic field as shown. Let E_(AB) represent the potential difference between A and B then

A uniform rod of mas m is moving with constant velocity v_(0) in a perpendicular uniform magnetic field B as shown. The resistance of rod is r . The current flowing through rod, R_(I) and R_(2) will be

A conducting rod of length l is moving in a transverse magnetic field of strength B with veocity v. The resistance of the rod is R. The current in the rod is

A conducting rod of length l is moving in a transverse magnetic field of strength B with veocity v. The resistance of the rod is R. The current in the rod is

A metal rod of resistance R is fixed along a diameter of a conducting ring of radius r. There is a magnetic field of magnitude B perpendicular to the plane of the loop. The ring spins with an angular velocity omega about its axis. The centre of the ring is joined to its rim by an external wire W. The ring and W have no resistance. The current in W is

A non-conducting disk of radius R is rotating about its own axis with constant angular velocity omega in a perpendicular uniform magnetic field B as shown in figure. The emf induced between centre and rim of disk is

A conducting loop of radius R is present in a uniform magnetic field B perpendicular to the plane of ring. If radius R varies as a function of time t as R = R_(0)+t^(2) . The emf induced in the loop is

A conducting loop of radius R is present in a uniform magnetic field B perpendicular to the plane of the ring. If radius R varies as a function of time t, as R =R_(0) +t . The emf induced in the loop is