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Question: Answered & Verified by Expert
In a reverse biased diode when the applied voltage changes by $1 \mathrm{~V}$, the current is found to change by $0.5 \mu \mathrm{A}$. The reverse bias resistance of the diode is
PhysicsSemiconductorsKCETKCET 2007
Options:
  • A $2 \times 10^{5} \Omega$
  • B $2 \times 10^{6} \Omega$
  • C $200 \Omega$
  • D $2 \Omega$
Solution:
1908 Upvotes Verified Answer
The correct answer is: $2 \times 10^{6} \Omega$
Reverse resistance
$$
\begin{aligned}
&=\frac{\Delta V}{\Delta I} \\
&=\frac{1}{0.5 \times 10^{-6}} \\
&=2 \times 10^{6} \Omega
\end{aligned}
$$

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