14.Semiconductor Electronics
medium

આપેલ પરિપથમાં રહેલા ઝેનર ડાયોડનો પાવર $x \times 10^{-1}\;watt$ હોય તો $x$નું મૂલ્ય નજીકના પૂર્ણાંકમાં કેટલું હશે?

A

$5$

B

$4$

C

$2$

D

$6$

(JEE MAIN-2021)

Solution

Voltage across $R _{ S }=22-15=7 V$

Current through $R _{ S }= I =\frac{7}{35}=\frac{1}{5} A$

Current through $90 \Omega= I _{2}=\frac{15}{90}=\frac{1}{6} A$

Current through zener $=\frac{1}{5}-\frac{1}{6}=\frac{1}{30} A$

Power through zener diode

$P = VI$

$P =15 \times \frac{1}{30}=0.5 watt$

$P =5 \times 10^{-1} watt$

Standard 12
Physics

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