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- Regulated DC Power Supply Mcqs
- Regulated DC Power Supply Mcqs - Set 2
MCQs 1: If the load current drawn by unregulated power supply increases, the d.c. output voltage______________?
MCQs 2: In a loaded Zener regulator, which is the largest Zener current ?
MCQs 3: Which of these is the best description for a Zener diode ?
It is a diode
It is a constant current device
It is a constant-voltage device
It works in the forward region
MCQs 4: If the load resistance decreases in a Zener regulator, then Zener current ______________?
MCQs 5: A Zener diode______________?
Is a battery
Acts like a battery in the breakdown region
Has a barrier potential of 1 V
Is forward biased
MCQs 6: A 30 V Zener will have depletion layer width_______________ that of 10 V Zener?
MCQs 7: What is true about the breakdown voltage in a Zener diode ?
It decreases when load current increases
It destroys the diode
It equals current times the resistance
It is approximately constant
MCQs 8: A 5 mA changes in Zener current produces a 50 mA change in Zener voltage. What is the Zener impedance ?
MCQs 9: The current in a Zener diode is limited by _______________?
MCQs 10: A certain regulator has a no-load voltage of 6 V and a full-load output of 5.82 V. What is the load regulation ?
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