One should always use rubber gloves and rubber shoes when dealing with electricity.

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

Describe in short an activity to:
$(i)$ demonstrate the pattern of magnetic field lines around a straight current-carrying conductor, and
$(ii)$ find the direction of the magnetic field produced for a given direction of current in the conductor. Name and state the rule to find the direction of the magnetic field associated with a current-carrying conductor. Apply this rule to determine the direction of the magnetic field inside and outside a current-carrying circular loop lying horizontally on a table. Assume that the current through the loop is anticlockwise.

What is the nature of the magnetic field produced by a straight current-carrying conductor? Explain with the help of an experiment.

On which principle is electricity generated in a power plant?

When is the force experienced by a current-carrying conductor placed in a magnetic field the largest?