Name the rule used to find the direction of force on a current-carrying conductor placed in a magnetic field.

The direction of the magnetic force acting on a current-carrying wire placed in a strong magnetic field can be determined by which rule?

Which scientist discovered that an electric current can be produced using a magnetic field?

An electron enters a magnetic field at right angles to it as shown in the figure. The direction of force acting on the electron will be:

Why does a magnetic compass needle pointing North and South in the absence of a nearby magnet get deflected when a bar magnet or a current carrying loop is brought near it? Describe some salient features of magnetic lines of field concept.

The magnitude of an $AC$ voltage used in other countries like America $(USA)$ is $.........$ and its frequency is $.......$.