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.
