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JEE Main 2023 (Online) 13th April Morning Shift
Numerical
+4
-1
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The elastic potential energy stored in a steel wire of length $$20 \mathrm{~m}$$ stretched through $$2 \mathrm{~cm}$$ is $$80 \mathrm{~J}$$. The cross sectional area of the wire is __________ $$\mathrm{mm}^{2}$$.

$$\left(\right.$$ Given, $$\left.y=2.0 \times 10^{11} \mathrm{Nm}^{-2}\right)$$

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2
JEE Main 2023 (Online) 13th April Morning Shift
Numerical
+4
-1
Out of Syllabus
Change Language

From the given transfer characteristic of a transistor in $$\mathrm{CE}$$ configuration, the value of power gain of this configuration is $$10^{x}$$, for $$\mathrm{R}_{\mathrm{B}}=10 ~\mathrm{k} \Omega$$, and $$\mathrm{R}_{\mathrm{C}}=1 ~\mathrm{k} \Omega$$. The value of $$x$$ is __________.

JEE Main 2023 (Online) 13th April Morning Shift Physics - Semiconductor Question 22 English

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