A circuilar brass loop of radius a and resistance R is placed with it plane perpendicular to a magnetic field, which varies with time as `B = B_(0) sin omega t`. Obtain the expression for the induced current in the loop.

A conducting metal circular-wire-loop of radius r is placed perpendicular to a magnetic field which varies with time as B = B_0e^(-t//tau) , where B_0 and tau are constants, at time = 0. If the resistance of the loop is R then the heat generated in the loop after a long time (t to oo) is :

A circular wire loop of radius r lies in a uniform magnetic field B, with its plane perpendicular to magnetic field. If the loop is deformed to a square shape in the same plane in time t, the emf induced in the loop is

A conducting loop of area A is placed in a magnetic field which varies sinusoidally with time as B=B_(0)sin

A uniform circular loop of radius a and resistance R palced perpendicular to a uniform magnetic field B . One half of the loop is rotated about the diameter with angular velocity omega as shown in Fig. Then, the current in the loop is

A circular conducting loop of area 100 cm^(2) and resistance 3 Omega is placed in a magnetic field with its plane perpendicular to the field. If the field is spatially uniform but varies with time t (in second) as B(t) = 1.5 cos omega t tesla, the peak value of the current in the loop is

A conducting circular loop of face are 2.5X10^(-3) m^2 is placed perpendicular to a magnetic field which varies as B = (0.20 T) sin[(50pi s^(-1))t]. (a)Find the chargej flowing through any cross- section during the time t=0 to t=40 ms.(b) If the resistance of the loop is 10 Omega , find the thermal energy developed in the loop in this period.

A stationary circular loop of radius a is located in a magnetic field which varies with time from t = 0 to t = T according to law B = B_(0) t(T - t) . If plane of loop is normal to the direction of field and resistance of the loop is R, calculate amount of heat generated in the loop during this interval.

A plane loop shown in figure-5.71 is shaped in the from of two squares with sides a and b and it is introduced into a uniform magnetic field at right angles, to the loop's plane. The magnetic induction varies with time as B=B_(0) sin omega t. find the amplitude of the current induced in the loop if its resistance per unit length is equal to r. the induction of the loop is negligible.

A stationary circular loop of radius a is located in a magnetic field which varies with time from t = 0 to t = T according to law B = B_(0) t(T - t) . If plane of loop is normal to the direction of field and resistance of the loop is R, calculate magnitude of charge flown through the loop from instant t = 0 to the instant when current reverses its direction.

A square wire loop with sides 0.5 m is placed with its plane perpendicular to the magnetic field. The resistance of the loop is 5Omega . The rate at which the magnetic induction should be changed so that a current of 0.1 A is induced in the loop is