A 8 V Zener diode along resistance |SemiconductorJEEMain2022

JEE MAIN 2022

29-07-2022 S2

Question

A 8 V Zener diode along with a series resistance R is connected across a 20 V supply (as shown in the figure). If the maximum Zener current is 25 mA, then the minimum value of R will be_____$\Omega$.

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Solution

$\begin{aligned} & \varepsilon-I R-V_Z=0 \\ & 20-I R-6=0 \\ & I R=12 \\ & 25 \times 10^{-3} R=12 \\ & R=\frac{12}{25 \times 10^{-3}}=480 \Omega\end{aligned}$

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JEE Main

Physics

Medium

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