1.

In a 3 phase full wave regulator feeding resistance load connected in star, the possible range of firing angle a is

A. 0 ≤ a ≤ 180°
B. 0 ≤ a ≤ 150°
C. 0 ≤ a ≤ 120°
D. 0 ≤ a ≤ 90°
Answer» C. 0 ‚⧠a ‚⧠120¬∞


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