Solution Toggle

Which statement is true about the magnetic poles?

What is the direction of the magnetic field lines inside a bar magnet?

The presence of a magnetic field can be detected by a:

If the current in a wire which is placed perpendicular to a magnetic field, the force on the wire:

D.C motor converts:

Which part of D.C motor reverses the direction of current through the coil every half-cycle?

The direction of induced e.m.f. in a circuit is in accordance with the conservation of:

The step-up transformer:

The turn ratio of a transformer is 10. It means: