If you strike a sharp edge of a metallic knife against the north pole of a bar magnet,it will induce a north pole.

Explain the meanings of the words "electromagnetic" and "induction" in the term electromagnetic induction. List three factors on which the value of induced current produced in a circuit depends. Name and state the rule used to determine the direction of induced current. State one practical application of this phenomenon in everyday life.

On which principle is electricity generated in a power plant?

What are permanent magnets and electromagnets? Give two uses of each.

What is short-circuiting in an electric supply?

The magnetic field around a current-carrying straight conductor is: