A coil and a bulb are connected in series with a dc source, a sof… - Vidyadip

MCQ

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
✓
Intensity of the bulb decreases
C
Intensity of the bulb increases
D
The bulb ceases to glow

✓

Answer

Correct option: B.

Intensity of the bulb decreases

There will be self induction effect when soft iron core is inserted.

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