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

$(a)$ Draw magnetic field lines of a bar magnet. "Two magnetic field lines never intersect each other". Why?
$(b)$ An electric oven of $1.5 \, kW$ is operated in a domestic circuit $(220 \, V)$ that has a current rating of $5 \, A$. What result do you expect in this case? Explain.

How can it be shown that a magnetic field exists around a wire through which a direct current is passing?

Can a freely suspended current-carrying solenoid stay in any direction? Justify your answer. What will happen when the direction of current in the solenoid is reversed? Explain.

Why is series arrangement not used for domestic circuits?

What is short-circuiting in an electric supply?