When the free ends of a tester are dipped into a solution, the magnetic needle shows deflection. Can you explain the reason?
The deflection withinside the compass needle indicates that present day is flowing thru the wounded cord and hence, thru the circuit. The circuit is whole due to the fact that unfastened ends of the tester are dipped in a answer. The answer is sincerely a accomplishing answer. This is the motive why the compass needle indicates a deflection.
