Verified Solution • 2025–26 Session moderate

QPages 419-421: Q30: HC Verma: Concepts of Physics - Volume 2 Semiconductors and Semiconductor Devices Pages 419-421: Q30 Solution: Find the equivalent resistance of the network shown in figure…

Find the equivalent resistance of the network shown in figure between the points A and B. Assume that the resistance of each diode is zero in forward bias and is infinity in reverse bias.)

Step-by-Step Verified Solution

**Answer:** R_eq = 10 � if V_A > V_B, and 5 � if V_A < V_B. **Step-by-Step Explanation:** If V_A > V_B, the diodes conduct. The circuit becomes two 10 � resistors in parallel = 5 �. If V_A < V_B, the diodes are reverse-biased and the circuit is different .

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