If Vdc1 is the dc output voltage in half wave controlled rectifier circuit feeding resistive load and Vdc2 is the dc output voltage in full wave controlled rectifier circuit (M - 2 connection) feeding resistive load, then

• Vdc1 = 0.5 Vdc2 for all values of firing angle
• Vdc1 = Vdc2 for all values of firing angle
• Vdc1 ≤ 0.5 Vdc2 for all values of firing angle
• Vdc1 ≥ 0.5 Vdc2 for all values of firing angle

Correct Answer: Vdc1 = 0.5 Vdc2 for all values of firing angle

Explanation:

and V_dc = (1 + cos a).