Agalvanometer has a coil of resistance 100 ohmand gives a full-scale deflection for 30 mAcurrent. It is to work as a voltmeter of 30 voltrange, the resistance required to be added willbe [2010]a)900andOmega;b)1800andOmega;c)500andOmega;d)1000andOmega;Correct answer is option 'A'. Can you explain this answer?

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A galvanometer has a coil of resistance 100 ohmand gives a full-scale deflection for 30 mAcurrent. It is to work as a voltmeter of 30 voltrange, the resistance required to be added willbe [2010]

a)
900Ω
b)
1800Ω
c)
500Ω
d)
1000Ω

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

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Agalvanometer has a coil of resistance 100 ohmand gives a full-scale d...

Let the resistance to be added be R, then

30 = I_g(r + R)

= 1000 – 100 = 900Ω

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Agalvanometer has a coil of resistance 100 ohmand gives a full-scale deflection for 30 mAcurrent. It is to work as a voltmeter of 30 voltrange, the resistance required to be added willbe [2010]a)900Ωb)1800Ωc)500Ωd)1000ΩCorrect answer is option 'A'. Can you explain this answer?

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Agalvanometer has a coil of resistance 100 ohmand gives a full-scale deflection for 30 mAcurrent. It is to work as a voltmeter of 30 voltrange, the resistance required to be added willbe [2010]a)900Ωb)1800Ωc)500Ωd)1000ΩCorrect answer is option 'A'. 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 Agalvanometer has a coil of resistance 100 ohmand gives a full-scale deflection for 30 mAcurrent. It is to work as a voltmeter of 30 voltrange, the resistance required to be added willbe [2010]a)900Ωb)1800Ωc)500Ωd)1000ΩCorrect answer is option 'A'. 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 Agalvanometer has a coil of resistance 100 ohmand gives a full-scale deflection for 30 mAcurrent. It is to work as a voltmeter of 30 voltrange, the resistance required to be added willbe [2010]a)900Ωb)1800Ωc)500Ωd)1000ΩCorrect answer is option 'A'. Can you explain this answer?.

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