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In the voltage regulator circuit shown below the power rating of Zener diode is 400 mW. The value of R. that will establish maximum

In the voltage regulator circuit shown below the power rating of Zener diode is 400 mW. The value of R. that will establish maximum power in Zener diode is 222 2 V, = 10 V. R=0 A RL 20 V

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