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.
About Potential Difference - CUET-UG
Potential Difference is a vital chapter for CUET-UG aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
Frequently Asked Questions
Why focus on Potential Difference PYQs?
Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.
How to best use this analysis?
Review the topic breakdown to see which sub-topics within Potential Difference carry the most weight. Then, tackle the questions iteratively to solidify your understanding.
