An electric lamp having coil of negligible indicatanec connected in series with a capacitor and an ac source is glowing with certain brightness. If the capacitance is reduced then :–
(a) Brightness will remain same
(b) Brightness will increase
(c) Brightness will decrease
(d) Current will increase
Correct Option (c) Brightness will decrease
Explanation:
When capacitance C is reduced, Xc(= 1/ωc) increases. This reduces the current and hence brightness of the bulb.