A moving-coil instrument has a resistance of 10 Ω and gives a full-sc – McqOptions

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1.	A moving-coil instrument has a resistance of 10 Ω and gives a full-scale deflection when carrying a current of 50 mA. What external resistance should be connected so that the instrument can be used to measure current up to 50 A?
A.	20 Ω in parallel
B.	100 Ω in series
C.	0.010 Ω in parallel
D.	18.7 Ω in series
Answer» D. 18.7 Ω in series

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