The simple series circuit consists of three identical bulbs 1, 2 and 3 connected to a battery. As shown in Fig X, all the bulbs glow with equal brightness.
Which of the following happens when a wire is connected between points P and Q (as shown in Fig Y)?
A
Bulb 2 fuses and stops glowing. Bulbs 1 and 3 glow with greater brightness.
B
Bulb 2 stops glowing. Bulbs 1 and 3 glow with greater brightness.
C
All the three bulbs glow but with reduced brightness.
D
No change takes place. All the three bulbs glow without any change in the brightness.
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Answer:
B. Bulb 2 stops glowing. Bulbs 1 and 3 glow with greater brightness.
Explanation:
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