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A coil and an electric bulb are connecte...

A coil and an electric bulb are connected in series with an ac. Source. On introducing a soft iron bar inside the coil, the intensity of the bulb will

A

increases

B

decreases

C

fluctuate

D

remain the same

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MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
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  11. The resistance of a bulb filmanet is 100Omega at a temperature of 100^...

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  14. An electric bulb is rated 220 V and 100 W. when it is operated on 110 ...

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  15. An 220 volt-1000 watt bulb is connected across a 110 volt mains supply...

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  17. If in the circuit, power dissipation is 150 W, then R is

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  18. A wire when connected to 220 V mains supply has power dissipation P1. ...

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  19. The resistance of the series combination of two resistances is S. WHen...

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