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Question 2
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In Figure 4, a 5 V stabilized power supply is required from a 12 V d.c. input source. If the maximum power rating of the zener diode is 2 W, calculate the:
- maximum current flowing in the zener diode;
- load current, IL;
- value of the series resistor, RS.
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The expected answers were:
- Maximum current flowing in the Zener diode is given by
The question was on Power Supply. The question was very unpopular with the candidates. The performance was poor.
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