Question
Question: A coil and a bulb are connected in series with a dc source; a soft iron core is then inserted in the...
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
Answer
Intensity of the bulb decreases
Explanation
Solution
There will be self induction effect when soft iron core is inserted.