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The full-scale deflection current of an ammeter is 1 mA and...

This question belongs to Electronics And Communications Engineering Measurement And Instrumentation
Measurement and Instrumentation
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The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100 ohms. This is to have full deflection when 100V is measured. What is the value of series resistor to be used?

Answer & Solution
Correct Answer: Option A
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2 Comments
Vikas Gaun
Vikas Gaun 6 years ago
V=i×r= 0.1v
M=Vn/Vo=100/0.1=1000
Rs=Ro(M-1)=100(1000-1)=99900=99.9kohm
Geetha Kalluri
Geetha Kalluri 6 years ago
Explanation.....
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