In given regulator circuit, zener voltage is 4.2V and zener power is Pw is 105 mW. Calculate R1 resistor value range to circuit work correctly. What is the advantage of using a transistor zener regulator circuit instead of a given regulator circuit?

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Q: a) In given regulator circuit, zener voltage is 4.2V and zener power is Pw is 105mW. Calculate R1…

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