A coil of number of turns N, area A, is rotated at a constant angular speed omega, in a uniform magnetic field B, and connected to a resistor R. Deduce expressions for :
power dissipated in the coil.

A metallic rod of length l is rotated at a constant angular speed omega , normal to a uniform magnetic field B. Derive an expressions for the current induced in the rod, if the resistance of the rod is R.

An a.c. generator consists of a coil of 100 turns and cross sectional area of 3 m^(2) , rotating at a constant angular speed of 60 rad//sec in a uniform magnetic field of 0.04 T. The resistance of the coil is 500 Omega . Calculate max. power dissipation in the coil.

In an a.c. generator, coil of N turns and area A is rotated at v revolutions per second in a uniform magnetic field B. Write the expression for e.m.f. produced.

An a.c. generator consists of a coil of 50 turns and area 2.5 m^(2) rotating att an angular speed of 60 rad s^(-1) in a uniform magnetic field B = 0.3 T between two fixed pole pieces. The resistance of the circuit including that of coil is 500 Omega . Find What will be the orientaiton of the coil w.r.t. the magnetic field to have (a) maximum (b) zero magnetic flux ?

An a.c. generator consists of a coil of 50 turns and area 2.5 m^(2) rotating att an angular speed of 60 rad s^(-1) in a uniform magnetic field B = 0.3 T between two fixed pole pieces. The resistance of the circuit including that of coil is 500 Omega . Find Would the generator work if the coil were stationary and instead, the pole pieces rotated together with the same speed as above ?

An a.c. generator consists of a coil of 50 turns and area 2.5 m^(2) rotating att an angular speed of 60 rad s^(-1) in a uniform magnetic field B = 0.3 T between two fixed pole pieces. The resistance of the circuit including that of coil is 500 Omega . Find the max. current drawn from the generator.

An a.c. generator consists of a coil of 2,000 turns each of area 80 cm^2 and rotating at an angular speed of 200 r.p.m. in a uniform magnetic field of 4.8 xx 10^-2 T. Calculate the peak and r.m.s. value of e.m.f induced in the coil.

A conductor of length 'l' is rotated about one of its ends at a constant angular speed omega in a plane perpendicular to a uniform magnetic field B. plot graphs to show variations of the emf induced across the ends of the conductor with angular speed omega .

A conductor of length 'l' is rotated about one of its ends at a constant angular speed omega in a plane perpendicular to a uniform magnetic field B. plot graphs to show variations of the emf induced across the ends of the conductor with length of the conductor l.