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Forty electric bulbs are connected in series acrossa 220 V supply. After one bulb is fused theremaining 39 are connected again in seriesacross the same supply. The illumination will be     [1989]
  • a)
    more with 40 bulbs than with 39
  • b)
    more with 39 bulbs than with 40
  • c)
    equal in both the cases
  • d)
    in the ratio 402 : 392
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Forty electric bulbs are connected in series acrossa 220 V supply. Aft...
Obviously is the number of bulbs is reduced in a series combination, the pd across each is increased and thus the power received by each. Thus each bulb will then glow brighter.
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Forty electric bulbs are connected in series acrossa 220 V supply. After one bulb is fused theremaining 39 are connected again in seriesacross the same supply. The illumination will be [1989]a)more with 40 bulbs than with 39b)more with 39 bulbs than with 40c)equal in both the casesd)in the ratio 402 : 392Correct answer is option 'B'. Can you explain this answer?
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Forty electric bulbs are connected in series acrossa 220 V supply. After one bulb is fused theremaining 39 are connected again in seriesacross the same supply. The illumination will be [1989]a)more with 40 bulbs than with 39b)more with 39 bulbs than with 40c)equal in both the casesd)in the ratio 402 : 392Correct answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Forty electric bulbs are connected in series acrossa 220 V supply. After one bulb is fused theremaining 39 are connected again in seriesacross the same supply. The illumination will be [1989]a)more with 40 bulbs than with 39b)more with 39 bulbs than with 40c)equal in both the casesd)in the ratio 402 : 392Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Forty electric bulbs are connected in series acrossa 220 V supply. After one bulb is fused theremaining 39 are connected again in seriesacross the same supply. The illumination will be [1989]a)more with 40 bulbs than with 39b)more with 39 bulbs than with 40c)equal in both the casesd)in the ratio 402 : 392Correct answer is option 'B'. Can you explain this answer?.
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