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Consider a solenoid carrying current...

Consider a solenoid carrying current supplied k by a DC source with a constant emf containing iron core inside it when the core is pulled out of the solenoid the change in current will

A

remain same

B

decrease

C

increase

D

modulate

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The correct Answer is:
C
Answer(3) When the core is pulled out of the solenoid, magnetic flux linked with the solenoid changes and as a result positive e.m.f will get induced. Hence, current in solenoid increases.
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