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.

A conductor of length l is moved perpendicular to uniform magnetic field B with velocity v as shown in the figure The e.m.f. induced across the length of the conductor is

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.

A metal rod of length 1 m is rotated about one of its ends in a plane at right angles to a uniform magneic field of 2.5 xx 10^-3 Wb m^-2 . If its makes 30 r.p.s. Calculate the induced e.m.f. between its ends.

A metal conductor of length 1 m rotates vertically about one of its ends at angular velocity 5 rad s^(-1) . If the horizontal component of the earth's magnetic field is 0.2xx10^(-4) T , then e.m.f. developed between the two ends of the conductor is

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 metal disc of radius 200 cm is rotated at a constant angular speed of 60 rad s^-1 in a plane at right angles to an external field of magnetic induction 0.05 Wb m^-1 . Find the e.m.f. induced between the centre and a point on the rim.

A circular copper disc 10 cm in radius rotates at 20pi rad/s about an axis through its centre and perpendicular to the disc. A uniform magnetic field of 0.2 T acts perpendicular to the disc. What is the induced current if the resistance of the disc is 2Omega ?

A straight line conductor of length 0.4 m is moved with a speed of 7ms^-1 perpendicular to magnetic field of intensity 0.9 Wb m^-2 . The induced e.m.f. across the conductor is