Electric Circuits
VRN, VYN and VBN are three phase voltage of a balanced three phase system. If VRN = 200∠30o V and VBN = 200∠- 90o V, then phase sequence of the system is

 YRB.
 RYB.
 RBY.
 BRY.

ANSWER DOWNLOAD EXAMIANS APP

Electric Circuits
A pole of driving point impedance is

 zero voltage for a finite value of driving current.
 zero current for a finite value of driving current.
 zero current for a finite value of driving voltage.
 zero voltage for a finite value of driving voltage.

ANSWER DOWNLOAD EXAMIANS APP