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WBJEE 2022 Physics and Chemistry Paper

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Question : 19

Total: 80

A Zener diode having break down voltage VZ=6V is used in a voltage regulator circuit as shown in the figure. The minimum current required to pass through the Zener to act as a voltage regulator is 10mA and maximum allowed current through Zener is 40mA. The maximum value of RS for Zener to act as a voltage regulator is

100Ω
400Ω
0.4Ω
950Ω

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