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

Name the type of current:
$(a)$ used in household supply,
$(b)$ given by a cell.

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.

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.

The magnetic field produced by a current in a straight wire has no poles.

Two long parallel wires are hanging freely. If they are connected to a battery $(i)$ in series and $(ii)$ in parallel,what would be the effect on their positions?