STANDARDPhysics-Semiconductors
STANDARD Physics Diodes MCQ Question
Type: MCQ-numerical-Medium
The circuit has two oppositely connected ideal diodes in parallel. What is the current flowing in the circuit?
A
2.0 A
B
1.33 A
C
1.71 A
D
2.31 A
Correct Answer
Option C
Detailed Explanation
In the given circuit, diode D₁ is forward biased and D₂ is reverse biased. The resistance of D₁ is zero and that of D₂ is infinite as the diodes D₁ and D₂ are ideal. No current flows through D₂. Thus, D₁ can be replaced by a resistanceless wire and D₂ can be replaced by a broken wire. The equivalent circuit is shown in the figure. The current in the circuit is I = 12V/(4Ω + 3Ω) = 1.71 A.
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