POWER SUPPLY CIRCUITS - Practice Mode

1) Which component filter the ripples in the rectifier circuit?

DIAC Diode TRIAC Capacitor

Correct Answer: Capacitor

2) Which parameter is maintained constant in zener diode?

Power Current Voltage Resistance

Correct Answer: Voltage

3) What is the meaning of maximum safe reverse voltage across a diode?

PIV voltage Knee voltage Break down voltage Reverse break down voltage

Correct Answer: PIV voltage

4) When does the zener diode begins to conduct in the reverse biased condition?

When bias voltage reached 0.7V After the barrier voltage cancelled Voltage across zener reached 0.3V Voltage across it reached the zener voltage

Correct Answer: Voltage across it reached the zener voltage

5) What is the output pulse frequency of the full wave rectifier with input frequency of 50 Hz?

40 Hz 60 Hz 100 Hz 200 Hz

Correct Answer: 100 Hz

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