A galvanometer coil has a resistance of 12 and the metre shows full scale deflection for a current of 3 mA. How will you convert he metre into a voltmeter of range 0 to 18 V?

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
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ISBN:9781337399128
Author:Russell E. Smith
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Chapter4: Electric Meters
Section: Chapter Questions
Problem 18RQ
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A T
A galvanometer coil has a resistance of 12
and the metre shows full scale deflection for a
24
current of 3 mA. How will you convert
the metre into a voltmeter of range 0 to 18 V?
Transcribed Image Text:A T A galvanometer coil has a resistance of 12 and the metre shows full scale deflection for a 24 current of 3 mA. How will you convert the metre into a voltmeter of range 0 to 18 V?
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