The direction of induced potential difference (induced current) is given by:

The induced electromotive force $(EMF)$ in a conducting coil does not depend on which of the following?

$A$ student,while studying the force experienced by a current-carrying conductor in a magnetic field,records the following observations:
$(i)$ The force experienced by the conductor increases as the current is increased.
$(ii)$ The force experienced by the conductor decreases as the strength of the magnetic field is increased.
Which of the two observations is correct and why?

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?

You are given two identical-looking iron bars,out of which one of them is a magnet. Just using these two bars,how will you identify which one is a magnet?

$A$ magnetic compass needle is placed in the plane of paper near point $A$ as shown in the figure. In which plane should a straight current-carrying conductor be placed so that it passes through $A$ and there is no change in the deflection of the compass? Under what condition is the deflection maximum and why?