When the free ends of a tester are dipped into a solution, the magnetic needle shows

deflection. Can you explain the reason?

 

Answer

When free ends of a tester is dipped in the solution, the solution conducts electricity as it is a good conductor of electricity.

So, the circuit is now complete. Hence, electricity passes through the wire.

Now, we know that electric current produces magnetic effect.

Therefore, magnetic needle shows deflection

  1. Class 8
  2. Chapter 14 Class 8 - Chemical Effects Of Electric Current

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.