STANDARDPhysics-Electric Circuits
STANDARD Physics Equivalent Resistance MCQ Question
Type: MCQ-conceptual-Medium
The equivalent resistance of the circuit shown in figure between the points A and B if Vₐ < Vᵦ is
A
10 Ω
B
20 Ω
C
5 Ω
D
40 Ω
Correct Answer
Option B
Detailed Explanation
When Vₐ < Vᵦ, the diode gets reverse biased and offers infinite resistance. No current flows through the upper branch in the given circuit, making the equivalent resistance R = 20 Ω.
Found an issue with this question?
Related Questions
More from Electric Circuits
In the circuit shown, if a conducting wire is connected between points A and B, the current in this wire will:
2006Physics
In a series resonant circuit, having L, C and R as its elements, the resonant current is I. The power dissipated in the circuit at resonance is
Physics
The current I₁ (in A) flowing through 1 Ω resistor in the following circuit is:
Physics