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A bulb and a capacitor are connected in ...

A bulb and a capacitor are connected in series to an a.c. source of varialbe frequency. How will the brightness of the bulb change on increasing the frequency of a.c. source ?

Text Solution

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As the frequency of the `a.c.` source increase, the capacitive reactance decrease `(X_(C) prop 1//f)` So the bulb glows with more brightness.
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