1.

An electric bulb and a capacitor are connected in series to a source of an alternating current. If the frequency of the current source is increased then the bulb gives more intense light.

Answer»


Solution : True - On increasing frequency of a.c. the impedance of the CIRCUIT `Z = SQRT(R^(2) + X_(L)^(2))`decreases, current FLOWING in the circuit increases and CONSEQUENTLY bulb gives more intense LIGHT


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