Electric Circuits
A capacitor of 50 microfarad is connected in series with a resistance of 120 Ω. If above circuit is connected across 240 V, 50 Hz 1 - φ supply. Find the capacitive reactance?

 63.7 Ω.
 135.86 Ω.
 1.765 Ω.
 0.015 Ω.

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Electric Circuits
Two electric bulbs have transparent filament of same thickness. It one of them gives 60 W and other gives 100 W, then-

 60 W lamp filament has longer length.
 100 W lamp filament has longer length.
 60 W and 100 W lamp filament have equal length.
 60 W lamp filament has shorter length.

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