A class A chopper has an input voltage of 200 V. Ton = 1.5 ms and Toff = 4.5 ms. The duty cycle, average output voltage and ripple factor respectively are

• 0.5, 100 V and 1
• 0.25, 50 V and 3
• 0.25, 50 V and 1
• 0.5, 100 V and 3