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  • A zener diode of power rating 1.6 W is be used as voltage regulator. If the zener diode has a breakdown of 8 V and it has to regulate voltage fluctuating between 3 V and 10 V. The value of resistan

A zener diode of power rating 1.6 W is be used as voltage regulator. If the zener diode has a breakdown of 8 V and it has to regulate voltage fluctuating between 3 V and 10 V. The value of resistance R8 for safe operation of diode will be                   
                                  

Option: 1

13.3 \Omega


Option: 2

13 \Omega


Option: 3

10 \Omega


Option: 4

12 \Omega


Answers (1)

best_answer

\begin{aligned} & \mathrm{I}_{\mathrm{t}}=\frac{\mathrm{P}_{\mathrm{t}}}{\mathrm{V}_{\mathrm{t}}}=\frac{1.6}{8}=0.2 \mathrm{~A} \\ & \mathrm{R}_{\mathrm{s}}=\frac{10-8}{\mathrm{I}} \\ & \mathrm{R}_{\mathrm{s}}=\frac{2}{0.2}=10 \Omega \end{aligned}

 

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seema garhwal

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