The diffusion capacitance of a PN junction _______ - Electronic Devices and Circuits

Electronics and Communication Engineering (ECE) : Electronic Devices and Circuits - Quiz(MCQ)

The diffusion capacitance of a PN junction _______

decreases with increasing current and increasing temperature

increasing with increasing current and increasing temperature

decreases with decreasing current and increasing temperature

doesnot depend on current and temperature

Correct Answer : Option (C) : decreases with decreasing current and increasing temperature

Explanation : C_D =τ I /n₀ V_T
Where, I is the current and VT is temperature factor. The diffusion capacitance is directly proportional to current and indirectly proportional to the temperature.

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