A rectangular coil of 200 turns or wire `15 xx 40 cm^(2)` makes 50 r.p.s. about an axis in its plane parallel to its longer side and perpendicular to a magnetic field of intensity `0.08 Wb//m^(2)`. What are the instantaneous values of induced e.m.f. when the plane of the coil makes an angle with magnetic field of (a) `0^(@)` (b) `60^(@)` (c) `90^(@) ?`

A rectangular coil of wire has dimensions 0.2 m xx 0.1 m . The coil has 2000 turns . The coil rotates in a magnetic field about an axis parallel to its length and peroendicular to the magnetic field fo 0.2 wb m^(-2) . The speed of rotation of the coil (ii) the instantaneous value of induced emf when the plane of the coil has rotated through an angle of 30 ^(@) from the initial position .

A rectangular coil rotates about an axis normal to the magnetic field, If E_(m) is the maximum value of the induced emf, then the instantaneous emf when plane of the coil makes an angle of 45^(@) with the magnetic field is

A coil of 800 turns 50 cm^(2) area makes 10 rps about an axis in its own plane in a magnetic field of 100 gauss perpendicular to the this axis. What is the instantaneous inducted emf in the coil ?

A circular coil of diameter 10 cm is placed in a magnetic field of induction 2 xx 10^(-4)T . The magnitude of flux linked with coil when the plane of coil makes an angle 45^@ with the field is

A coil has 2000 turns and area of 70cm^(2) . The magnetic field perpendicular to the plane of the coil is 0.3 Wb//m^(2) and takes 0.1 sec to rotate through 180^(0) . The value of the induced e.m.f. will be

A coil having 50 turns and an area of 800 cm^(2) is held with its plane perpendicular to uniform magnetic field of induction 5xx10^(-5)Wb//m^(2) . If it is pulled out of the field in 2 second, then the emf induced in the coil will be

Calculate the torque on a 200 turns rectangular coil of length 20cm and breadth 10cm carrying a current of 10A , when placed in a magnetic field. The plane of the coil is making an angle of 60^@ with a magnetic field of 4T .

A coil has 50 turns and its area is 500 cm^(2) . It is rotating at the rate of 50 r.p.s. at right angles to a magnetic field of 0.5 Wb//m^(2) . Calculate the maximum value of electromotive force developed across the ends of the coil.

A rectangular coil of 300 turns has an average area of average area of 25 cmxx10 cm the cooil rotates with a speed of 50 cps in a uniform magnetic field of strength 4xx10^(-2)T about an axis perpendicular of the field. The peak value of the induced e.m.f. is (in volt)