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

Question

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

Tardigrade Admin · Accepted Answer

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

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

Intensity of the bulb remains the same

Intensity of the bulb decreases

Intensity of the bulb increases

The bulb ceases to glow

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