1.

Resistance of a given wire is obtained by measuringthe current flowing in it and the voltage differenceapplied across it. If the percentage errors in themeasurement of the current and the voltagedifference are 3% each, then error in the value ofresistance of the wire is :-(1) 3% (2) 6% (3) zero (4) 1%AIEEE 2012]

Answer»

In multiplication or division, percentage errors are simply addedSince R=V/I

% error in R= % error in V + Percent error in I = 3%+3% = 6 %



Discussion

No Comment Found

Related InterviewSolutions