Which of the following observations for the electric circuit shown below are correct?

(i) Fuse 1 blows up before fuse 2, in case of excessive current.
(ii) Bulb C glows if bulb B gets fused.
(iii) Bulbs B and C glow if bulb A gets fused.

Only (i)

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Only (iii)

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Both (i) and (ii)

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Both (i) and (iii)

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Solution

The correct option is D Both (i) and (iii)

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Q. (a) Will the bulb glow in the circuit shown in Fig.? Explain. If not, what can be done to light the bulb?

(b) What happens when a bulb gets fused ?
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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?

Question 28 (i)
$B_{1}, B_{2}$ and $B_{3}$ are three identical bulbs connected as shown in figure. When all the three bulbs glow, a current of 3A is recorded by the ammeter A.
(i) What happens to the glow of the other two bulbs when the bulb $B_{1}$ gets fused?

Q. What happens to the glow of the other two bulbs when the bulb

B_{1}

gets fused?

B_{1}, B_{2}

and

B_{3}

are three identical bulbs connected as shown in Figure 12.8. When all the three bulbs glow, a current of 3A is recorded by the ammeter A.
What happens to the glow of the other two bulbs when the bulbs

B_{1}

gets fused?

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Which of the following observations for the electric circuit shown below are correct? (i) Fuse 1 blows up before fuse 2, in case of excessive current. (ii) Bulb C glows if bulb B gets fused. (iii) Bulbs B and C glow if bulb A gets fused.

The correct option is D Both (i) and (iii)

Which of the following observations for the electric circuit shown below are correct?

(i) Fuse 1 blows up before fuse 2, in case of excessive current.
(ii) Bulb C glows if bulb B gets fused.
(iii) Bulbs B and C glow if bulb A gets fused.