Yoon ki investigates electromagnetic induction by moving a bar magnet into a coil of wire. his experimental setup is shown. what change would most improve his results? a) moving the magnet faster b) using more loops of wire in the coil c) using the south pole of the magnet d) connecting the galvanometer to the coil

A change that would most improve his results would be; D) Connecting the galvanometer to the coil

The correct answer is "connecting the galvanometer to the coil".

Explanation:

Electromagnetic induction is the phenomenon of the production of the electromagnetic force across the conductor by changing the magnetic field.

The current can be induced by moving the conductor in the magnetic field. The current can also be induced by changing the magnetic field across the conductor.

The current will be induced into a coil of wire by moving a bar magnet into a coil of wire. It can be observed by connecting the galvanometer to the coil. The galvanometer is an instrument which shows the deflection when the current is flowing in the conductor.

Therefore, the correct option is (D).