Measurements and Instrumentation - Engineering

Q1:

Two resistors R1 = 36 Ω ± 5% and R2 = 75 Ω ± 5% are connected in series. The total resistance is

A 111 ± 0 Ω

B 111 ± 2.778 Ω

C 111 ± 5.55 Ω

D 111 ± 7.23 Ω

ANS:C - 111 ± 5.55 Ω

Total maximum error ± (1.8 + 3.75) = ± 5.55 Ω.