What do you understand by breakdown diodes, Electrical Engineering

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(a) Draw and illustrate the V-I characteristics of PN junction diode. How the characteristics reflected with change in temperature?

(b) Describe physically why a PN junction diode acts as rectifier?

(a) What do you understand by breakdown diodes?

(b) Describe how the process of avalanche breakdown occurs in a PN junction diodes. How it is different from Zener diode?

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