If B is the flux density, I the length of conductor and v the velocity of conductor, then induced e.m.f. is given by______________?

Related Mcqs:

While applying Fleming’s right-hand rule to And the direction of induced e.m.f., the thumb points towards___________?

A. direction of induced e.m.f. B. direction of flux C. direction of motion of the conductor if forefinger points in the direction of generated e.m.f. D. direction of motion of conductor, if forefinger points along the lines of flux...

The material for commutator brushes is generally_______________?

A. mica B. copper C. cast iron D. carbon...

The rapid wear of brushes takes place due to____________?

A. abrasion from dust B. excessive spring pressure C. rough commutator bars D. high mica insulation between com-mutation bars E. all of the above factors...

Lap winding is composed of_____________?

A. any even number of conductors B. any odd number of conductors C. that even number which is exact multiple of poles + 2 D. that even number which is exact multiple of poles...

Permeance is the reciprocal of______________?

A. flux density B. reluctance C. ampere-turns D. resistance...