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A coil and a bulb are connected in serie...

A coil and a bulb are connected in series with a `dc` source, a soft iron core is then inserted in the coil. Then

A

intensity of the bulb remains the same

B

intensity of the bulb decrease

C

intensity of the bulb increase

D

the bulb ceases to glow

Text Solution

Verified by Experts

The correct Answer is:
B
There will be self-induction effect when soft iron core is inserted in the coil. So, intensity of bulb increases.
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