JEE Mains · Physics · STD 12 - 14. Semicondutor electronics
In the given circuit if the power rating of Zener diode is \(10 \mathrm{~mW}\), the value of series resistance \(R_s\) to regulate the input unregulated supply is _______.
- A \(5 \mathrm{k} \Omega\)
- B \(10 \Omega\)
- C \(1 \mathrm{k} \Omega\)
- D \(10 \mathrm{k} \Omega\)
Answer & Solution
Correct Answer
(A) \(5 \mathrm{k} \Omega\)
Step-by-step Solution
Detailed explanation
Pd across \(R_{\text {s }}\) \(V_1=8-5=3 \mathrm{~V}\) Current through the load resistor \(\mathrm{I}=\frac{5}{1 \times 10^3}=5 \mathrm{~mA}\) Maximum current through Zener diode \(I_{z \max .}=\frac{10}{5}=2 \mathrm{~mA}\) And minimum current through Zener diode…
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