Networks Analysis and Synthesis - Engineering

Q1:

In the network of figure, the voltage drops across R1, R2, R3 are 6 V, 8 V and 12 V with polarities as shown. The value of R3 is

A 12 Ω

B 8 Ω

C 5 Ω

D 3 Ω

ANS:D - 3 Ω

From the given data the current through R1 is 4 A.