A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is_____________?

Related Mcqs:

Higher the self-inductance of a coil_____________?

A. lesser its weber-turns B. lower the e.m.f. induced C. greater the flux produced by it D. longer the delay in establishing steady current through it...

The self inductances of two coils are 8 mH and 18 mH. If the co-efficients of coupling is 0.5, the mutual inductance of the coils is______________?

A. 4 mH B. 5 mH C. 6 mH D. 12 mH...

A coil is wound on iron core which carries current I. The self-induced voltage in the coil is not affected by________________?

A. variation in coil current B. variation in voltage to the coil C. change of number of turns of coil D. the resistance of magnetic path...

A.C cannot be used for_______________?

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

The emf induced in a conductor of unit length moving with unit velocity at right angles to a magnetic field is equal to_____________?

A. Magnetic flux density B. Torque C. Mutual induction D. Motional emf...