To measure a resistance with the help of a potentiometer it is

1.	To measure a resistance with the help of a potentiometer it is
A.	necessary to standardise the potentiometer
B.	not necessary to standardise the potentiometer
C.	necessary to use a volt ratio box in conjunction with the potentiometer
D.	none of the above
Answer» C. necessary to use a volt ratio box in conjunction with the potentiometer

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To measure a resistance with the help of a potentiometer it is

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