1
JEE Main 2022 (Online) 29th July Evening Shift
Numerical
+4
-1

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

2
JEE Main 2022 (Online) 29th July Morning Shift
Numerical
+4
-1

If the potential barrier across a p-n junction is $$0.6 \mathrm{~V}$$. Then the electric field intensity, in the depletion region having the width of $$6 \times 10^{-6} \mathrm{~m}$$, will be __________ $$\times 10^{5} \mathrm{~N} / \mathrm{C}$$.

3
JEE Main 2022 (Online) 26th July Evening Shift
Numerical
+4
-1

The typical transfer characteristics of a transistor in CE configuration is shown in figure. A load resistor of $$2 \,k \Omega$$ is connected in the collector branch of the circuit used. The input resistance of the transistor is $$0.50 \,\mathrm{k} \Omega$$. The voltage gain of the transistor is ______________.

4
JEE Main 2022 (Online) 26th July Morning Shift
Numerical
+4
-1

In the circuit shown below, maximum zener diode current will be _________ $$\mathrm{mA}$$.

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