Question

Why compass needle shows
deflection when the switch in
the given circuit is closed?​

Answer 1

Answer:

because when current is flowing electric field is being generated and due to which the compass shows deflection

Answer 2

The compass needle shows deflection when the switch in the given circuit is closed, because -

• The magnetic needle of the compass usually points towards north and south direction by its two ends, in the normal condition.
• But, when the needle is kept into an electric field the normal north-south pointing position is deflected to some other position.
• Whenever, we remove the electricity field, the magnetic needle will regain its normal north-south pointing position.
• In the same way, the electrical field of the given figure made the compass needle to shift from its normal north-south pointing position. Whenever the electric field is removed the magnetic needle came back to its normal north-south pointing position.
• The regaining of north-south pointing position will cause deflection in the needle.