In an ideal diode, once it is conducting in the forwarddirection, the voltage ac

Question

In an ideal diode, once it is conducting in the forwarddirection, the voltage across the diode remains constant no matterhow the current throught it changes. a) What is the effective resistance of an ideal diode when itis conducting in the forward direction ? Explain. b) In the reverse direction, no currentwill flow for anyapplied voltage within the operating limits of the dioade which isfrom 0 Volts to the Zener breakdown voltage 3.2 Volts. Inthis range, what is the effective resistance of an ideal diode inthe reverse direction? Explain. In an ideal diode, once it is conducting in the forwarddirection, the voltage across the diode remains constant no matterhow the current throught it changes. a) What is the effective resistance of an ideal diode when itis conducting in the forward direction ? Explain. b) In the reverse direction, no currentwill flow for anyapplied voltage within the operating limits of the dioade which isfrom 0 Volts to the Zener breakdown voltage 3.2 Volts. Inthis range, what is the effective resistance of an ideal diode inthe reverse direction? Explain.

Explanation / Answer

a) When an ideal diode is forward biased , the voltage acrossit will be constant irrespective of the current.
       V = 0    Effective forward resistance.       rF = V /I = 0 b) When an ideal diode is reverse biased , the currentthrough it will be zero.
       I = 0    Effective reverse resistance.       rF = V /I = b) When an ideal diode is reverse biased , the currentthrough it will be zero.
       I = 0    Effective reverse resistance.       rF = V /I =

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