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  4. When a silicon p-n junction is in forward biased condition with a series resistance, it has a knee voltage of text0.6 V . If 5 mA of current flows in it when the p-n junction is connected with a text2.6 V battery, the value of the series resistance is

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Q. When a silicon p-n junction is in forward biased condition with a series resistance, it has a knee voltage of $\text{0.6} \, V$ . If $5 \, mA$ of current flows in it when the p-n junction is connected with a $\text{2.6} \, V$ battery, the value of the series resistance is

NTA AbhyasNTA Abhyas 2020Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:


Solution
$R=\frac{(2.6-0.6)}{5 \times 10^{-3}}=400 \Omega$