A zener diode having zener voltage 8, {V} and power dissipation rating of 0.5, {W} is connected acro

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14.Semiconductor Electronics

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A zener diode having zener voltage $8\, {V}$ and power dissipation rating of $0.5\, {W}$ is connected across a potential divide arranged with maximum potential drop across zener diode is as shown in the diagram. The value of protective resistance ${R}_{{p}}$ is $....\,\Omega$

A

$123$

B

$456$

C

$192$

D

$219$

(JEE MAIN-2021)

Solution

$P=V i$

$0.5=8 i$

$i=\frac{1}{16}\, A$

$E=20=8+i R_{p}$

$R_{P}=12 \times 16=192\, \Omega$

Standard 12

Physics

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