A coil of self-inductance L is connected in series with a bulb B and an AC source. Brightness of the bulb
decreases when -

Question

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NA

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frequency of the AC source is decreased

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number of turns in the coil is reduced

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a capacitance of reactance XC = XL is included in the same circuit

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an iron rod is inserted in the coil

1.	A coil of self-inductance L is connected in series with a bulb B and an AC source. Brightness of the bulb decreases when -
A.	frequency of the AC source is decreased
B.	number of turns in the coil is reduced
C.	a capacitance of reactance XC = XL is included in the same circuit
D.	an iron rod is inserted in the coil
Answer» E.

Discussion