Reversing the field or the current will reverse the force on the conductor

Related Mcqs:

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...

The co-efficient of coupling between two air core coils depends on____________?

A. self-inductance of two coils only B. mutual inductance between two coils only C. mutual inductance and self inductance of two coils D. none of the above...

cmf generated by A.C dynamo depends upon_____________?

A. number of turns in the coil B. magnetic field strength C. frequency of rotation D. all of above...

Which of the following uses electric energy and does not convert it into any other form ?

A. transformer B. motor C. D.C generator D. A.C generator...

Energy stored in a magnetic field is given by______________?

A. LI2 B. L2I/2 C. LI2/2 D. IL2...