Electro Magnetic Induction And Alternating Currents Question 542

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 [MP PMT 1990; RPET 2001]

Options:

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

Show Answer

Answer:

Correct Answer: B

Solution:

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



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