In figure100 watts = lamp A50 watts = lamp Ba)The lamp A will be brighter than lamp Bb)The lamp B will be brighter than lamp Ac)The two lamp will be equally brightd)None of the aboveCorrect answer is option 'B'. Can you explain this answer?

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In figure

100 watts = lamp A

50 watts = lamp B

a)
The lamp A will be brighter than lamp B
b)
The lamp B will be brighter than lamp A
c)
The two lamp will be equally bright
d)
None of the above

Correct answer is option 'B'. Can you explain this answer?

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In figure100 watts = lamp A50 watts = lamp Ba)The lamp A will be brig...

That lamp will glow brighter whose resistance will be greater.

For 100 watts bulb, R= 200×200/100 = 400 ohms

For 50 watts bulb, R= 200×200/50 = 800 ohms

So 50 watts bulbs will glow brighter.

Hence, the correct option is (B)

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In figure100 watts = lamp A50 watts = lamp Ba)The lamp A will be brighter than lamp Bb)The lamp B will be brighter than lamp Ac)The two lamp will be equally brightd)None of the aboveCorrect answer is option 'B'. Can you explain this answer?

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