Question
An $A C$ voltage source of variable angular frequency $\omega$ and fixed amplitude $V_0$ is connected in series with a capacitance $\mathrm{C}$ and an electric bulb of resistance $\mathrm{R}$ (inductance zero). When $\omega$ is increased
✓
Answer
Impedance $Z=\sqrt{\frac{1}{(\omega C)^2}+R^2}$
as $\omega$ increases, $Z$ decreases.
Hence bulb will glow brighter
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