Measurements and Instrumentation - Engineering

Q1:

Two resistances are : R1 = 36 Ω ± 1.89 Ω and R2 = 75 Ω ± 3.75 Ω. The sum R1 + R2 along with limiting error is

A 111 Ω ± 1.8 Ω

B 111 Ω ± 3.75 Ω

C 111 Ω ± 5.55 Ω

D 111 Ω ± 1.95 Ω

ANS:C - 111 Ω ± 5.55 Ω

36 + 75 = 111, 1.8 + 3.75 = 5.55. Therefore, R1 + R2 = 111 ± 5.55 ohm.