1.

Two ammeters with full scale reading of 1 mA and 10 mA are connected in parallel. If the reading of the two ammeters are 0.5 mA and 2.5 mA, respectively, what is the ratio of the internal resistance of ammeters?

A. 1 : 10
B. 10 : 1
C. 1 : 5
D. 5 : 1
Answer» C. 1 : 5


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