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  • If a zener diode  and <img alt="\mathrm{\left(\mathrm{V}_{\mathrm{Z}}=5 \mathrm{~V} \text { and } \mathrm{I}_{\mathrm{Z}}=10 \mathrm{~mA}\right)}" src="https://entrancecorner.oncodecogs.c

If a zener diode  and \mathrm{\left(\mathrm{V}_{\mathrm{Z}}=5 \mathrm{~V} \text { and } \mathrm{I}_{\mathrm{Z}}=10 \mathrm{~mA}\right)} is connected in series with a resistance and 20 \mathrm{~V} is applied across the combination, then the maximum resistance one can use without spoiling zener action is

Option: 1

20 \mathrm{k} \Omega


Option: 2

15 \mathrm{k} \Omega


Option: 3

10 \mathrm{k} \Omega


Option: 4

1.5 \mathrm{k} \Omega


Answers (1)

best_answer

Voltage available across load resistance
\mathrm{R=20-5=15 \mathrm{~V}}
Resistance of load,

\mathrm{\begin{aligned} & R=\frac{15}{10 \times 10^{-3}}=1.5 \times 10^3 \\ & =1.5 \mathrm{k} \Omega \end{aligned}}

Posted by

HARSH KANKARIA

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