The current in the circuit shown in the figure, considering ideal diode is
1
20 A
2
A
3
200 A
4
A
Official Solution
Correct Option:
(2)
Step 1: Analysis
Potential difference across the diode = . Step 2: Calculation
Current .
$ $ Final Answer: (B)
02
PYQ 2015
medium
physicsID: met-2015
In the circuit diagram shown (15 V supply, , series resistance , Zener voltage V), the current through the Zener diode is
1
10 mA
2
3.33 mA
3
6.67 mA
4
0 mA
Official Solution
Correct Option:
(2)
Step 1: Understanding the Concept:
In a Zener regulator circuit, the Zener voltage is constant at V. Current through (load) and Zener are found by Kirchhoff's laws.
Step 2: Detailed Explanation:
Current through : mA. Wait -- in parallel, in series. Voltage across V: mA. Current through series : mA. Zener current: mA.
Step 3: Final Answer:
Current through Zener diode mA.
About P N Junction - MET
P N Junction is a vital chapter for MET 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 P N Junction 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 P N Junction carry the most weight. Then, tackle the questions iteratively to solidify your understanding.
