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Consider the circuit below. The bulb will light up if
- S1S2 and S3 are all closed
- S1 is closed but S2 and S3 are open
- S1 and S3 are closed but S2 is open
- None of these
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Solution
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We know that the bulb will light up only if circuit is complete and current flows through the bulb.Option A-Bulb will not light up as it is short circuit.
Option B-Bulb will light up as circuit is complete and current flows through the bulb.
Option C-Bulb will not light up as it is short circuit.
Therefore, B is correct option.
Option B-
Bulb will light up as circuit is complete and current flows through the bulb.
Therefore, B is correct option.
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