A small coil lies inside a large coil. The two coils are horizontal concentric and carry currents in opposite directions. The large coil will experience______________?

Related Mcqs:

If current in a conductor increases then according to Lenz’s law self-induced voltage will____________?

A. aid the increasing current B. tend to decrease the amount of cur-rent C. produce current opposite to the in-creasing current D. aid the applied voltage...

Lenz’s law is a consequence of the law of conservation of__________?

A. induced current B. charge C. energy D. induced e.m.f....

A.C cannot be used for________________?

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

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...

Self-inductance of a long solenoid is______________?

A. μoN2A B. μoN2/A C. μoN2 D. BA...