Question

When the current is switched on through a wire, a compass needle

kept nearby gets deflected from its north-south position. Explain.​

Answer 1

Answer:

This happens because the compass niddle is a metal and the north and south poles are magnets so when electricity passes through them the electricity conducts from the metal so it gets deflected.

Answer 2

Answer:

When current is passed through the coiled wire, it deflects the compass near it from its north-south position like a magnet. This is called magnetic effect of the current. As we know that needle of the compass is made up of a thin magnet. When this needle comes in contact with another magnet then the like poles of the magnet repel each other and opposite poles attract each other. So the deflection is seen in the needle. In this case the wire behaves like a magnet and causes deflection in needle of the compass.