Question

In a reverse biased diode, when the applied voltage changes by $1V$, the current is found to change by $0.5$$\mu A$. The reverse bias resistance of the diode is

• A. $2$$\times$$10$${}^5\Omega$
• B. $2$$\times$$10$${}^6\Omega$
• C. $200$$\Omega$
• D. $2$$\Omega$

Answer 1

The correct option is B $2$$\times$$10$${}^6\Omega$

Reverse resistance =$\frac{\Delta V}{{\Delta }_I}=\frac{1}{0.5\times {10}^{-6}}=2\times {10}^6\Omega$