Home
Class 12
PHYSICS
When a rectangular coil is rotated about...

When a rectangular coil is rotated about an axis in the plane of coil and perpendicular to magnetic field with steady speed then

A

no e. m.f. is induced

B

a periodic e.m f. is induced

C

unidirectional e.m .f. is induced

D

multidirectional e.m. f. is induced

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

A coil of 50 turns each of area 0.12m^2 is rotated at constant speed of 600 r.p.m. in uniform magnetic field of induction 0.02 tesla about an axis in the plane of coil and perpendicular to direction of field.Calculate maximum e.m.f. induced in the coil.

A coil of 100 turns each of area 0.12m^2 is rotated with constant speed 62.8rad/s in uniform magnetic field of induction 0.02 tesla about an axis in the plane of coil and perpendicular to the direction of field. Calculate maximum value of induced e.m..f.in the coil.

A rod of length l is rotated about its one end, perpendicular to a magnetic field of induction B What is the e.m.f induced in the rod

A coil of 100 turns each of area 0.1 m^2 is rotated at constant speed of 300 r.p.m. in a uniform magnetic field of induction 0.02 Wb//m^2 about an axis in the plane of the coil and perpendicular to the direction of the coil.Calculate the maximum value of induced e.m.f.

A circular coil of 16 turns and radius 10 cm carrying a current of 0.75 A rests with its plane normal to an external field of magnitude 5.0 xx 10^-2 T .The coil is free to turn about an axis in its plane perpendicular to the field direction. .When the coil is turned slightly and released, it oscillates about its stable equilibrium with a frequency of 2.0 s^-1 . What is the moment of inertia of the coil about its axis of rotation?

A disc of moment of inertia I_1 , is rotating in horizontal plane about an axis passing through its centre and perpendicular to its plane with constant angular speed omega_1 . Another disc of moment of inertia I_2 having angular speed omega_2 The energy lost by the initial rotating disc is

A wire 88 cm long bent into a circular loop is kept with plane of the coil perpendicular to the magnetic induction 2.5 Wb//m^2 . Within 0.5 second, the coil is changed to a square and magnetic induction is increased by 0.5 Wb//m^2 . Calculate the e.m.f. induced in the wire.

A coil of 10^3 turns each of area 100 cm^2 rotateswith speed of 100 r.p.m. about an axis in its plane and perpendicular to uniform field of induction 36 xx 10^-2 Wb//m^2 . Find the peak and e.m.f. value of the induced e.m.f. in the coil.

A rectangular coil of 25 turns, area of 25 cm^2 and resistance of 4 ohm//turn is placed perpendicular to a varying magnetic field, which changes at the rate of 500 T//s . The induced current in the coil is

Fill in the blanks : Our galaxy is rotating around an axis passing through its centre and perpendicular to its plane with period of rotation about ………….