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A zener diode of power rating 2W is to be used as a voltage regulator.

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A zener diode of power rating 2W is to be used as a voltage regulator. If the zener diode has a breakdown of 10 V and it has to regulate voltage fluctuated between 6 V and 14 V, the value of Rs for safe operation should be _______ Ω.

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1 Answer

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by (38.5k points)

Answer is 20

When unregulated voltage is 14 V voltage across zener diode must be 10 V So potential difference across resistor ΔVRs = 4V

and Pzener = 2W

VI = 2

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