Physics - Semiconductors Question with Solution | TestHub

Since diode${\mathit{\text{D}}}_1$is reverse biased, therefore it will act as an open circuit.
The effective resistance of the circuit is$\mathit{\text{R}}=4+2=6 \mathrm{\Omega }$.
Current in the circuit is$\mathit{\text{I}}=\mathit{\text{E}}/\mathit{\text{R}}=\text{12}/6=$2 A.