Question

When the free ends of a tester are dipped into solution the magnetic needle shows deflection explain the reason?​

Answer 1

Answer:-

Yes, we can explain the reason. The Magnetic needle will show deflection when circuit is complete.

The deflection of magnetic needle shows that the solution is a good conductor.

Answer 2

Answer:

The deflection of the magnetic needle shows that electric current is flowing through the wires. The circuit is complete since the free ends of the tester are dipped into a solution. Also, the solution is a good conductor of electricity. So, the magnetic needle shows deflection