Networks Analysis and Synthesis - Engineering

Q1:

When a 10 K, 10%, 1/4 Ω resistor is connected in series with a 12 K, ± 1%, 1/4 Ω resistor, the resulting combination has the following specifications

A 22 K, ± 11%, 1/2 Ω

B 22 K, ± 5.5%, 1/2 Ω

C 22 K, ± 5.5%, 1/8 Ω

D none of these

ANS:B - 22 K, ± 5.5%, 1/2 Ω

Req = R1 + R2, maximum.