The junction capacitance of a p-n junction depends onOptions :Doping concentration onlyBoth doping concentration and applied voltageBarrier potential onlyApplied voltage only
Question
The junction capacitance of a p-n junction depends onOptions :Doping concentration onlyBoth doping concentration and applied voltageBarrier potential onlyApplied voltage only
Solution 1
The junction capacitance of a p-n junction depends on both the doping concentration and the applied voltage.
Here's why:
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Doping Concentration: The level of doping on both the p-side and n-side of the junction affects the width of the depletion region. Higher doping levels decrease the width of the depletion region, which in turn increases the junction capacitance.
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Applied Voltage: The applied voltage also affects the width of the depletion region. When a reverse bias is applied to the p-n junction, it increases the width of the depletion region, which decreases the junction capacitance. Conversely, when a forward bias is applied, it decreases the width of the depletion region, increasing the junction capacitance.
So, the junction capacitance of a p-n junction is dependent on both the doping concentration and the applied voltage.
Solution 2
The junction capacitance of a p-n junction depends on both the doping concentration and the applied voltage.
Here's why:
-
Doping Concentration: The level of doping on both the p-side and n-side of the junction affects the width of the depletion region. Higher doping levels decrease the width of the depletion region, which in turn increases the junction capacitance.
-
Applied Voltage: The applied voltage also affects the width of the depletion region. When a reverse bias is applied to the p-n junction, it increases the width of the depletion region, which decreases the junction capacitance. Conversely, when a forward bias is applied, it decreases the width of the depletion region, increasing the junction capacitance.
So, the junction capacitance of a p-n junction is dependent on both the doping concentration and the applied voltage.
Similar Questions
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The dominant mechanism for motion of charge carriers in forward and reverse biased silicon P-N junctions are :Drift in forward bias, diffusion in reverse biasDiffusion in forward bias, drift in reverse biasDiffusion in both forward and reverse biasDrift in both forward and reverse bias
Briefly explain conduction of a p-n junction diode in forward bias mode.a.Dark currents, friction, humidity and aging, enhances p and n type regions in the neutral region/depletion region until when it overcomes the potential barrier for the p-n junction to start conducting.b.Increase in pressure enhances p and n type regions in the neutral region/depletion region until when it overcomes the potential barrier for the p-n junction to start conducting.c.Increase in temperature enhances p and n type regions in the neutral region/depletion region until when it overcomes the potential barrier for the p-n junction to start conducting.d.External field enhances p and n type regions in the neutral region/depletion region until when it overcomes the potential barrier for the p-n junction to start conducting.
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