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Consider an alternating current (a.c.) source whose angular frequency ( ) changes constantly but…
Consider an alternating current (a.c.) source whose angular frequency ($\omega$) changes constantly but has a fixed peak voltage 'V'. This source is connected to an ideal capacitor (C) and electric bulb of resistance 'R'. When ($\omega$) starts to reduce gradually, then which of the following condition happens?
- (a)The bulb starts to dim.
- (b)The bulb starts to glow brighter than before.
- (c)The brightness of the bulb is independent of changes in ($\omega$).
- (d)The bulb will fuse out.
Answer
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From ISC 2025 Practice Physics, question 14.