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Q.

A lamp (pure resistance) is connected in series with a capacitor 

A) When a dc source is connected to the combination, the lamp will not glow in steady state
B) When ac source is connected to the combination, the brightness of glow of lamp increases with increases of frequecncy of ac.

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a

A is true B is false

b

A is false B is true

c

A & B are true

d

A & B are false

answer is C.

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Detailed Solution

detailed_solution_thumbnail

In dc at steady state no current flows through the capacitor and in ac if frequency increases the capacitive reactance (1) decreases so current or glow in the lamp increases.

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