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A spring made of copper is moved towards...

A spring made of copper is moved towards a stationary bar magnet. What are the changes observed in the spring when
(1) the to ends of the spring are connected.
(2) the two ends of the spring are not connected.

Text Solution

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(i) Requirement for current to flow.
(ii) Difference between geographical axis and geographical meridian.
(iii) Change in the length of the spring .
(iv) Pole strenght decrease when the area of cross-section of the bar magnet is reduced and the .
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