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  4. The resistance of a germanium junction diode whose V - I is shown in figure is (Vk = 0.3 V)

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Q. The resistance of a germanium junction diode whose $V - I$ is shown in figure is $ (V_k = 0.3 \, V)$Physics Question Image

VITEEEVITEEE 2014Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

$R=\frac{\Delta V}{\Delta I}=\frac{2.3-0.3}{10 \times 10^{-3}}$
$R =\frac{2}{10} \times 10^{3}$
$R =0.2 \times 10^{3} \Omega$
$=0.2\, k\, \Omega$