COMEDK · Physics · 30. Semiconductors
In the given circuit, assuming the battery is oriented with its positive terminal on the right, the diode \(D_1\) and \(D_2\) have the forward resistance \(25\,\Omega\) and infinite backward resistance. When they are connected to the source, the current passing through the \(175\,\Omega\) resistor is:
- A 0.044 A
- B 0.028 A
- C 0.04 A
- D 0.095 A
Answer & Solution
Correct Answer
(C) 0.04 A
Step-by-step Solution
Detailed explanation
Battery positive terminal is on the right, so current flows right to left. \(D_1\) points right \(\Rightarrow\) reverse biased \(\Rightarrow\) open circuit. No current through the \(55\,\Omega\) branch. \(D_2\) points left \(\Rightarrow\) forward biased \(\Rightarrow\) acts as…
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