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1. When the free ends of a tester are dipped into a solution, the magnetic needle shows deflection. Can you explain the reason?
The magnetic needle deflection shows that the circuit is complete and that the solution conducts , indicating a .
2. A child staying in a coastal region test the drinking water and also the seawater with his tester. He finds that the compass needle deflects more in the case of seawater. Can you explain the reason?
Seawater has than drinking water. It is a of electricity and produces a larger magnetic field in the wire, deflecting the compass needle more.
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