Q.

A direct current can be measured by

  • AA  DC  potentiometer directly
  • BA  DC potentiometer in conjunction with a standard resistance
  • CA  DC potentiometer in conjunction with a volt ratio box 
  • DNone of the above 
Correct Answer : (B)

A  DC potentiometer in conjunction with a standard resistance

Hints :

A direct current can be measured by a DC potentiometer in conjunction with a standard resistance.

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