Network Analysis and Synthesis - ECE Questions and Answers

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If operator 'a' = 1 ∠120° then (1 - a) =

3 ∠ - 30°

3 ∠ + 30°

3 ∠60°

Answer : Option B

Explanation :

1 - a = 1 - 1∠120° = 1 + 0.5 - j 0.866 = 1.5 - j 0.866 = 3∠-30°.

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