Physics - Semiconductors Question with Solution | TestHub

In the given circuit, the zener diode is used as a voltage regulating device. The voltage across $6\mathrm{k}\Omega$ resistance is $(10-6)\mathrm{V}=4\mathrm{V}$ Current through $6\mathrm{k}\Omega$ resistor, $I=\frac{4\mathrm{V}}{6\mathrm{k}\Omega }=\frac{4}{6\times 10^3}=\frac{2}{3}\times 10^{-3}=\frac{2}{3}\mathrm{mA}$