A direct current can be measured by

1.	A direct current can be measured by
A.	a D.C. potentiometer directly
B.	a D.C. potentiometer in conjunction with a standard resistance
C.	a D.C. potentiometer in conjunction with a volt ratio box
D.	none of the above
Answer» C. a D.C. potentiometer in conjunction with a volt ratio box

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A direct current can be measured by

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