The law that the induced e.m.f. and current always oppose the cause producing them is due to____________?

Related Mcqs:

Which of the following is not a unit of inductance ?

A. Henry B. Coulomb/volt ampere C. Volt second per ampere D. All of the above...

In case all the flux from the current in coil 1 links with coil 2, the co-efficient of coupling will be____________?

A. 2.0 B. 1.0 C. 0.5 D. zero...

Current changing from 8 A to 12 A in one second induced 20 volts in a coil. The value of inductance is___________?

A. 5 mH B. 10 mH C. 5 H D. 10 H...

A.C cannot be used for________________?

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

The out put voltage of a transformer is 3 times the input voltage then turns ratio will be________________?

A. 3-Jan B. 3 C. 1 D. 6...