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Figure shows that bulbs B1, B2 , and B3,...

Figure shows that bulbs `B_1, B_2 , and B_3`, are connected to the mains. Suppose `B_4` is another bulb added in parallel, then:

A

the brightness of `B_1` will increase.

B

the brightness of `B_3` will increase.

C

the brightness of both `B_1 and B_2 ` will in crease.

D

the brightness of both `B_1 and B_2` will fall.

Text Solution

Verified by Experts

The correct Answer is:
B
On adding `B_4` which is in parallel, the resistance of the circuit decreases. Hence the current increases. So, the brightness of `B_3` will increase.
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