A conducting ring of mass 2kg and radius `0.5m` is placed on a smooth plane. The ring carries a current of `i=4A`. A horizontal magnetic field `B=10 T` is switched on at time `t=0` as shown in fig The initial angular acceleration of the ring will be
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A conducting ring of mass 2 kg and radius 0.5 m is placed on a smooth horizontal plane. The ring carries a current . A horizontal magnetic field B = 10T is switched on at time t = 0 as shown in figure. The initial angular acceleration of the ring will be:

A conducting rign of mass 100 gram and radius 0*5m is placed on a smooth horizontal plane. The ring carries a current of I=4A . A horizontal magnetic field B=10T is switched on at time t=0 as shown in figure. The initial angular acceleration of the ring is

In the shown figure a conducting ring of mass = 2kg and radius R = 0.5 m. lies on a smooth horizontal plane with its plane vertical. The ring carries a current of I = (1)/(pi)A . A horizontal uniform magnetic field of B = 12T is switched on at t =0. The initial angular acceleration alpha in rad//sec^(2) of the ring will be 4x if x is :

In the shown figure a conducting ring of mass = 2kg and radius R = 0.5 m. lies on a smooth horizontal plane with its plane vertical. The ring carries a current of I = (1)/(pi)A . A horizontal uniform magnetic field of B = 12T is switched on at t =0. The initial angular acceleration alpha in rad//sec^(2) of the ring will be 4x if x is :

A conducting ring of mass 2kg, radius 0.5m carries a current of 4A. It is placed on a smooth horizontal surface. When a horizontal magnetic field of 10 T parallel to the diameter of the ring is applied, the initial acceleration is (in rad/se c^(2) )

A conducting ring of mass m = pi kg and radius R = (1)/(2)m is kept on a flat horizontal surface (xy plane). A uniform magnetic field is switched on in the region which changes with time (t) as vec(B) = (2hatj +t^(2) hatk)T . Resistance of the ring is r = pi Omega and g = 10 ms^(-2) . (a) Calculate the induced electric field at the circumference of the ring at the instant it begins to topple. (b) Calculate the heat generated in the ring till the instant it starts to topple.

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) .