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Measurements and Instrumentation - Engineering

Q1:

Two ammeters having resistances of 0.5 Ω and 0.25 Ω and having full scale reading of 25 A each are connected in parallel. To ensure that neither of them goes beyond scale, the total current should not be more than

A 50 A

B 37.5 A

C 25 A

D 40 A

ANS:B - 37.5 A

or V = 37.5 V.