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A solenoid and a bulb is connected with d.c source. How the brightness of the bulb will be affected if an iron rod is inserted inside the solenoid?

A solenoid and a bulb is connected with d.c source. How the brightness of the bulb will be affected if an iron rod is inserted inside the solenoid?

Grade:12

1 Answers

Ram
11 Points
3 years ago
No change in brightness because current is steady.So there will not be any back emf.Brightness will be same in both case.
 

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