In the figure, the potential difference between A and B is:
1
0 V
2
2 V
3
4 V
4
8 V
Official Solution
Correct Option: (3)
The circuit shown consists of resistors and a diode. To find the potential difference between points A and B, we first analyze the circuit behavior. Since the diode is forward biased (due to the potential difference from the 24V battery), it will conduct. The resistors and are in series, with a total resistance of:
The total current through the circuit can be found using Ohm’s law:
Now, the potential drop across (which is the same as ) is:
The remaining potential drop across (which corresponds to the potential difference between A and B) is:
Thus, the potential difference between points A and B is 4V.
