Networks Analysis and Synthesis - Engineering

Q1:

If Va = 10 ∠0, Vb = 10 ∠ -120° and Vc = 10 ∠ -240°, then Va2 and Va0 are

A 10 and 0 respectively

B 0 and 10 respectively

C 0 and 0

D 10 and 10

ANS:A - 10 and 0 respectively

Since it is a balanced system of voltages, Va2 and Va0 must be zero.