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Q. The current through the battery shown in the circuit is Question



NTA AbhyasNTA Abhyas 2020Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

Since diode $\textit{D}_{1}$ is reverse biased, therefore it will act like an open circuit.
Effective resistance of the circuit is $\textit{R} = 4 + 2 = 6 \Omega $ .
Current in the circuit is $\textit{I} = \textit{E} / \textit{R} = \text{12} / 6 =$ 2 A.