How can you magnetise a piece of magnetic material?

How can we find the direction of the magnetic field due to a straight current-carrying conductor?

On what factors does the force experienced by a current-carrying conductor placed in a uniform magnetic field depend?

In order to find the force experienced by a current-carrying conductor,we can use Maxwell's corkscrew rule.

Which of the following appliances cannot be connected in a $15\, A$ current line?

Explain the phenomenon of electromagnetic induction. Describe an experiment to show that a current is set up in a closed loop when an external magnetic field passing through the loop increases or decreases.