Question

The V-I characteristics of a diode is defined as
$i=\{\begin{array}{cc}\frac{V-0.7}{500}& V\ge 0.7\\ 0& V<0.7\end{array}$
The power absorbed by diode is ____mW.

• A. 23.56

Answer 1

The correct option is A 23.56
$\frac{V-V_{\gamma }}{R_f}=\frac{V-0.7}{500}$

$\therefore V_{\gamma }=0.7V{R}_f=500\Omega$
$i=\frac{10-0.7}{1500}=6.2mA$
Power absorbed by diode$=500\times 6.2\times 6.2\times {10}^{-6}+0.7\times 6.2\times {10}^{-3}$
$=23.56mW$