How can a compass needle be used as a tester

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asked Oct 10, 2017 73.0k views

4 votes

How can a compass needle be used as a tester

Physics
middle-school

Mr Hyde asked

by Mr Hyde

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1 Answer

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it shows deflection for the presence of current.However it can't be used for the A.C. current used at home.hope this helped.

Alanextar answered Oct 17, 2017

by Alanextar

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