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In the application of frequency models, the value of forward current is _____

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In the application of frequency models, the value of forward current is _____

(a) IF = A(µPP + µNN)q

(b) IF = A(µPN + µNP)q

(c) IF = A(µPP – µNN)q

(d) IF = A(µPN – µNP)q

This question was posed to me in exam.

The origin of the question is p-i-n Diode and its Characteristics in portion Semiconductor-Diode Characteristics of Electronic Devices & Circuits

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Right option is (a) IF = A(µPP + µNN)q

Explanation: The forward current depends on mobility and carrier concentration. In frequency models, the value of forward current is IF = A*(µPP + µNN)q. Where, µP and µN are the mobility of p and n type charge carriers respectively.

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