A ring of mass 'm' and radius 'r' carrying current `i_(0)` is lying in the X-Y plane with centre at origin. A uniform magnetic field of strength `B=B_(0) (2hat(i)-3hatj+5hatk)T` is applied in the region. If the ring rotates about the axid initial magnetic energy stored in the ring will be. (In joules)

A ring of radius 5 m is lying in the x-y plane and is carrying current of 1 A in anticlockwise sense. If a uniform magnetic field overset-B=3hati+4hatj is switched on, then the coordinates of point about which the loop will lift up is:

A circular loop of radius R carrying current I is kept in XZ plane. A uniform and constant magnetic field vecB=(B_(0)hati+2B_(0)hatj+3B_(0)hatk) exists in the region ( B_(0)- a positive constant). Then the magnitude of the torque acting on the loop will be

A circular loop of radius R carrying current I is kept in XZ plane. A uniform and constant magnetic field vecB=(B_(0)hati+2B_(0)hatj+3B_(0)hatk) exists in the region ( B_(0)- a positive constant). Then the magnitude of the torque acting on the loop will be

A ring of raidus 5m is lying in the x-y plane is carrying current of 1A in anti-clockwise sence. If uniform magnetic field of magnetic induction vecB=3hati+4hatj is switched on in space, then the co-ordinates of point about which the loop will have a tendency to lift up is:

A conducting ring of radius r and resistance R is placed in region of uniform time varying magnetic field B which is perpendicular to the plane of the ring. It the magnetic field is changing at a rate alpha , then the current induced in the ring is

A conducting ring of radius r and resistance R is placed in region of uniform time varying magnetic field B which is perpendicular to the plane of the ring. It the magnetic field is changing at a rate alpha , then the current induced in the ring is

A thin ring of mass 0.1kg and diameter 0.5m carrying charge q is free to rotate about an axis as shown in the figure.At t=0, time dependent magnetic field of 8t Tesla is applied vertically down on the ring.If the ring is at rest before applying magnetic field and induced magnetic effects due to rotation of the ring are neglected,the power developed by the force acting on the ring after 10sec is found to be 6.4mw .Find the charge q that the ring is carrying?

A uniform current carrying ring of mass m and radius R is connected by a massless string as shown in Fig. 1.142. A uniform magnetic field B_0 exists in the region to keep the ring in horizontal position, then the current in the ring is (l=length of string) .

A uniform current carrying ring of mass m and radius R is connected by a massless string as shown in Fig. 1.142. A uniform magnetic field B_0 exists in the region to keep the ring in horizontal position, then the current in the ring is (l=length of string) .