Alternating CurrentHard
Question
A bulb and a capacitor are connected in series to a source of alternating current. If its frequency is increased, while keeping the voltage of the source constant, then.
Options
A.bulb will give more intense light
B.bulb will give less intense light
C.bulb will give light of same intensity as before
D.bulb will stop radiating light
Solution
Intersity a I2rms R α 
R but Z = 
So If ω increases Z dreases & Intersity increases.
R but Z = So If ω increases Z dreases & Intersity increases.
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