Question 18

A fused bulb does not glow. Why?

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Solution

A bulb is said to be fused when the filament inside it breaks. This filament burn due to excessive amount of current flow, In such cases, the circuit will be incomplete to make the bulb glow, when electricity is applied.

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Similar questions

Why doesn't a fused bulb glow when connected across a battery ?

Fig. 9.12 shows three bulbs A, B and C each of rating 100 W, 220 V connected to the mains of 220 V. Answer the following:

(a) How is the bulb A connected with the mains? At what voltage does it glow?

(b) How are the bulbs B and C connected with the mains? At what voltage does the bulb B glow?

(d) How is the glow of bulbs B and C affected if bulb A gets fused?

A

B

A

B

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