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a. Explain forward and reverse biasing VI characteristics of PN junction. b. A Zener diode has a breakdown voltage of 10V. it is supplied from

a. Explain forward and reverse biasing VI characteristics of PN junction.
b. A Zener diode has a breakdown voltage of 10V. it is supplied from a voltage source varying between 20 to 40 V in series with a resistance of 820Ω. Using ideal Zener diode model obtain minimum and maximum zener currents.
c. With neat circuit diagram and waveforms explain the working of bridge rectifier.

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