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When the regulation by a Zener diode is with a varying input voltage, what happens to the voltage drop across the resistance?
  • a)
    Decreases
  • b)
    Has no effect on voltage
  • c)
    Increases
  • d)
    The variations depend on temperature
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
When the regulation by a Zener diode is with a varying input voltage, ...
 When the input voltage varies, the input current also varies. This makes more current to flow in the diode. This increase in the current should balance a change in the load current. Hence the voltage drop increases across the resistor.
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When the regulation by a Zener diode is with a varying input voltage, what happens to the voltage drop across the resistance?a)Decreasesb)Has no effect on voltagec)Increasesd)The variations depend on temperatureCorrect answer is option 'C'. Can you explain this answer?
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