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What happens in PIN diode for low frequency model?

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What happens in PIN diode for low frequency model?

(a) reactance decreases

(b) conductance increases

(c) resistance increases

(d) reactance increases

I have been asked this question by my college professor while I was bunking the class.

This interesting question is from p-i-n Diode and its Characteristics in chapter Semiconductor-Diode Characteristics of Electronic Devices & Circuits

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The correct option is (d) reactance increases

Explanation: In a low frequency model, the resistance decreases and reactance increases.Here the variable resistance is neglected. At low frequencies, the charge can be removed and the diode can be turned off.

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