A closed coil having 50 turns, area `300cm^(2)`, is rotated from a position where it plane makes an angle of `45^(@)` with a magnetic field of flux density 2.0T to a position perpendlcular to the field in a time of 0.1s. What is the average EMF induced in the coil ?

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

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

A coil of wire enclosing an area 100 cm^2 is placed with its plane making an angle 60^@ with the magnetic field of strength 10^(-1) T. What is the flux through the coil? If magnetic field is reduced to zero in 10^(-3) s, then find the induced emf?

A coil of area 10 cm^2 has 200 turns. Magnetic field of 0.1 Wb//m^2 is perpendicular to the plane of the coil. The field is reduced to zero in 0.1 s, the induced emf in the coil is

A coil of area A lies in a uniform magnetic field B with its plane perpednicular to the field. In this position the normal to the coil makes an angle 0^(@) with a field. The coil rotates at a uniform rate about its diameter to complete one rotation in time T . Find the average induced e.m.f. in the coil during the interval when coil rotates from: (a) 0^(@) to 90^(@) (b) 90^(@) to I80^(@) (c) I80^(@) to 270^(@) (d) 270^(@) to 360^(@)

A coil has 1,000 turns and 500 cm^2 as its area. The plane of the coil is placed at right angles to a magnetic induction field of 2 xx 10^(-5) wb//m^2 . The coil is rotated through 180^@ in 0.2 seconds. The average e.m.f induced in the coil, in milli-volts.