Physics - Semiconductors Question with Solution | TestHub

Here $p-n$ junction is forward biased. If $p-n$ junction is ideal, its resistance is zero. The effective resistance across $A$ and $B$ $=\frac{10\times 10}{10+10}=5\mathrm{K}\Omega$ Current in the circuit $I=\frac{30}{(10+5)\times 10^3}=\frac{2}{10^3}$ $\therefore$ Current in each arm $=\frac{I}{2}=\frac{1}{10^3}\mathrm{A}$. Pot. diff. across $A$ and $B$ $=\frac{1}{10^3}\times 10\times 10^3=10\mathrm{V}$