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Q.

Why doesn’t a bulb glow even if the correct connections are made

(i) Battery is dead 

(ii) filament is broken

 (iii) switch is closed

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a

Only (i) and (ii)

b

Only (i)

c

Only (ii)

d

Only (iii)

answer is D.

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Detailed Solution

Even after correct connections are provided and switch is closed, the bulb may not glow because of dead battery or broken filament

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