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Q#1
Sinusoidal Steady State Analysis
GATE EE 2004
MCQ
+1 mark
-0.33 marks
Total instantaneous power supplied by a 3-phase ac supply to a balanced R-L load is
Zero
Constant
Pulsating with zero average
Pulsating with non-zero average
Explanation:
Load impedance 
Where 
& 
Balanced 
voltage supply
Current in the balanced load,
Similarly,
Instantaneous power in load ‘p’
Constant
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