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Bulb in this circuit doesn't glow, why?...

Bulb in this circuit doesn't glow, why?

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A fused bulb does not glow. Why

Choose the correct statement: When the same current(i) flows through tow circuits as shown in the figures, then (assume that all bulbs are identical) (A) bulbs in first combination glow with more brightness. (B) bulbs in second combination glow with more brightness. (C) bulbs in both the combination glow with equal brightness.

Three incandecent bulbs of 100 W each are connected in series in an electric circuit. In another circuit another set of three bulbs of the same wattage are connected in parallel to the same source. (a) Will the bulbs in the two circuits glow with the same brightness ? Justify your answer. (b) Now let one bulb in both the circuits get fused. Will the rest of the bulbs continue to glow in each circuit ? Give reason.

The bulb in the circuit shown in Figure does not glow. Can you identify the problem? Make necessary changes in the circuit to make the bulb glow.