Resistance R4 is known as ________(a) standard resistance(b) unknown resistance to be measured(c) resistance arm(d) input resistanceThe question was asked by my school principal while I was bunking the class.The origin of the question is Wheatstone Bridge Balance Condition in chapter Measurement of Resistance of Electrical Measurements

Resistance R4 is known as ________(a) standard resistance(b) unknown r

1.	Resistance R4 is known as ________(a) standard resistance(b) unknown resistance to be measured(c) resistance arm(d) input resistanceThe question was asked by my school principal while I was bunking the class.The origin of the question is Wheatstone Bridge Balance Condition in chapter Measurement of Resistance of Electrical Measurements
Answer» Right choice is (b) unknown resistance to be measured The best I can explain: R4 is the unknown resistance whose value has to be found by comparison with a standard. R3 is known as the standard resistance. Resistance arm COMPRISES of four RESISTANCES including R1, R2, R3, and R4.

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