On Increasing The Reverse Bias To A Large Value In A pn junction Diode, The Current

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Question

On increasing the reverse bias to a large value in a pn junction diode, the current

easy

Solution

Correct option is

Suddenly increases

When the reverse bias voltage is increased, a stage is reached when the charge carries (electrons and holes) are accelerated by the reverse bias voltage and acquire kinetic energy so as to break the covalent bonds in the semiconductor by collisions. The freed electrons can do the same and a rapidly increasing number of energetic electrons are produced. Consequently, the reverse current increases very rapidly.