Choose the correct option:
A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each:
(a) two revolutions
(b) one revolution
(c) half revolution
(d) one-fourth revolution

A rectangular coil of copper wire is rotated in a magnetic field. The direction of the induced current changes once in each

Choose the correct option:
A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each:

Explain why, the direction of induced current in the coil of an A.C. Generator changes after every half revolution of the coil.

A wire loop is rotated in a uniform magnetic field about an axis perpendicular to the field. The direction of the current induced in the loop reverses in each

A wire loop is rotated in a uniform magnetic field about an an axis perpendicular to the field. The direction of the current induced in the loop reverses once each

A particle is moving along a circle with a uniform speed $10m/s$. At $t=0$ , the particle is moving along east. Find the change in velocity (magnitude and direction) in (a) $1/4th$ revolution , (b) $1/2$ revolution , ( c) $3/4th$ revolution and (d) $1$ revolution.

A body is moving with uniform speed v on a horizontal circle in anticlockwise direction from A as shown in figure. What is the change in velocity in (a) half revolution (b) first quarter revolution.

A point charge q is rotated along a circle in the electric field generated by anotherj point charge Q. The work done by the electric field on the rotatin charge in one complete revolution is

A charged particle of mass $m$ and charge $q$ travels on a circular path of radius $r$ that is perpendicular to a magnetic field $B$. The time takeen by the particle to complete one revolution is

Fleming's Right hand rule gives
(A) magnitude of induced current
(B) magnitude of magnetic field
(C) direction of induced current
(D) both direction and magnitude of induced current.