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Bulbs in Series

Three identic...

Question

Three identical bulbs P, Q and R are connected to a battery as shown in figure. When the circuit is closed

A

Q and R will be brighter than P

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B

Q and R will be dimmer than P

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C

All the bulbs will be equally bright

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D

Q and R will not shine at all

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Solution

The correct option is B
Q and R will be dimmer than P

If I is the current through Q and R each, then 2I is the current through P. Therefore Q and R will be dimmer than P

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