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A Coil is Connected to a Galvanometer. When the N-pole of Magnet is Pushed into the Coil, the Galvanometer Deflected to the Right. What Deflection, If Any, is Observed When: the Magnet is a Rest in the Coil?

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Question

A coil is connected to a galvanometer. When the N-pole of magnet is pushed into the coil, the galvanometer deflected to the right. What deflection, if any, is observed when: 

the magnet is a rest in the coil? 

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Solution

 When the magnet is at rest in the coil, no deflection of galvanometer needle will take place.
It is because there is no relative motion between the coil and the magnet. Thus, the current induced is zero.

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Chapter 5: Magnetic Effects of Electric Current - Exercise 4 [Page 105]

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Lakhmir Singh Physics [English] Class 10
Chapter 5 Magnetic Effects of Electric Current
Exercise 4 | Q 37.3 | Page 105
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