Electric Circuits
For balanced star load, if unbalanced line current are IR, IY, IB equal to - j10, - j10 and - j20 respectively, the neutral current will be equal to

  (8.66 - j5) A.
  (-9.66 + j5) A.
  (8.66 + j5) A.
  (-8.66 - j5) A.

ANSWER DOWNLOAD EXAMIANS APP

Electric Circuits
What is referred as the average value in AC opearation?

 Average of all values of the phase sequences.
 Average of all values of the (+)ve and (-)ve half.
  Average of all values of an alternating quantity over a complete cycle.
 Average of all values of an alternating quantity.

ANSWER DOWNLOAD EXAMIANS APP