A direct current can be measured by________?
Aa D.C. potentiometer in conjunction with a standard resistance
Ba D.C. potentiometer in conjunction with a volt ratio box
Cnone of the above
Da D.C. potentiometer directly
Correct answer
A. a D.C. potentiometer in conjunction with a standard resistance
Explanation
The correct answer is a D.C. potentiometer in conjunction with a standard resistance.