A conductor 2 meters long moves at right angles to a magnetic field of flux density 1 tesla with a velocity of 12.5 m/s. The induced e.m.f. in the conductor will be____________?

Related Mcqs:

An e.m.f. of 16 volts is induced in a coil of inductance 4H. The rate of change of current must be______________?

A. 64 A/s B. 32 A/s C. 16 A/s D. 4 A/s...

A 500 turns solenoid develops an average induced voltage of 60 V. Over what time interval must a flux change of 0.06 Wb occur to produce such a voltage ?

A. 0.01 s B. 0.1 s C. 0.5 s D. 5 s...

A.C cannot be used for_______________?

A. producing heat B. producing light C. magnetizing and electroplating D. all the above...

Power loss in actual transformer is due to_________________?

A. Small output B. Eddy currents and magnetic hysterias C. Soft iron core D. Back emf...

A coil of wire is arranged with its plane perpendicular to a uniform magnetic field o flux density B. when the radius of the coil increases from r1 to r2 in time Δt then what is the emf induced in the coil ?

A. ωB/r22-r12/Δt B. ωB(r2-r1)2/Δt C. ωB(r22-r12)/Δt D. ωB(r22+r12)/Δt...