MCQ
Identify the circuit diagram in which the bulb does $NOT$ light up.
- AOnly $P$ and $Q.$
- ✓Only $Q$ and $R.$
- COnly $R$ and $P.$
- D$P, Q$ and $R.$
In circuit $P\rightarrow $The bulb glows as it is a complete circuit.
In circuit $Q\rightarrow $ There is no cell and so no current flows to light up the bulb.
In circuit $R \rightarrow $ The filament is broken in the bulb.
So, the bulb does not light up.
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