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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° [Wrong Answer] |
B. | 0 ≤ a ≤ 150° [Correct Answer] |
C. | 0 ≤ a ≤ 120° [Wrong Answer] |
D. | 0 ≤ a ≤ 90° [Wrong Answer] |