Measurements and Instrumentation - Engineering

Q1:

A generated voltage is equally dependent on three resistances R1, R2, R3 and its value is V = (R1R2)/R3. If tolerance of each resistor is 0.1%, the maximum error in voltage is

A 0.3%

B ± 0.3%

C 0.1%

D ± 0.1%

ANS:B - ± 0.3%

The tolerances are additive.