In a 3-phase semi-converter, firing angle is less than 60 , as such each SCR and diode conduct respectively for __________ (in degrees)

In a 3-phase semi-converter, firing angle is less than 60 , as such ea

1.	In a 3-phase semi-converter, firing angle is less than 60 , as such each SCR and diode conduct respectively for __________ (in degrees)
A.	60, 60
B.	90, 30
C.	120, 120
D.	180, 180
Answer» D. 180, 180