NCERT VIII - Sciences
When the free ends of a tester are dipped into a solution, the magnetic needle shows deflection. Can you explain the reason?
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we know that electric current produces magnetic effect which causes a deflection in the magnetic needle of a compass.hence,when the free ends of a tester are dipped in to a solution which is good conductor of electricity,the needle shows deflection.
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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.
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