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A galvanometer having a resistance of 20 Ω and 30 divisions on both sides has figure of merit 0.005 ampere/division. The resistance that should be connected in series such that it can be used as a voltmeter upto 15 volt, is :-
  • a)
    80 Ω
  • b)
    120 Ω
  • c)
    125 Ω
  • d)
    100 Ω
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A galvanometer having a resistance of 20 Ω and 30 divisions on b...
Rg = 20Ω
NL = NR = N = 30


Igmax = 0.005 × 30
= 15 × 10–2 = 0.15
15 = 0.15 [20 + R]
100 = 20 + R
R = 80
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A galvanometer having a resistance of 20 Ω and 30 divisions on both sides has figure of merit 0.005 ampere/division. The resistance that should be connected in series such that it can be used as a voltmeter upto 15 volt, is :-a)80 Ωb)120 Ωc)125 Ωd)100 ΩCorrect answer is option 'A'. Can you explain this answer?
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A galvanometer having a resistance of 20 Ω and 30 divisions on both sides has figure of merit 0.005 ampere/division. The resistance that should be connected in series such that it can be used as a voltmeter upto 15 volt, is :-a)80 Ωb)120 Ωc)125 Ωd)100 ΩCorrect answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A galvanometer having a resistance of 20 Ω and 30 divisions on both sides has figure of merit 0.005 ampere/division. The resistance that should be connected in series such that it can be used as a voltmeter upto 15 volt, is :-a)80 Ωb)120 Ωc)125 Ωd)100 ΩCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A galvanometer having a resistance of 20 Ω and 30 divisions on both sides has figure of merit 0.005 ampere/division. The resistance that should be connected in series such that it can be used as a voltmeter upto 15 volt, is :-a)80 Ωb)120 Ωc)125 Ωd)100 ΩCorrect answer is option 'A'. Can you explain this answer?.
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