The typical output characteristics curve for a transistor working in the common emitter configuration is shown in the figure

Solved Physics Paper JEE 2021 Shift 2 March 18th

The estimated current gain from the figure is …………..

Answer: (200)

For common emitter configuration

\(\begin{array}{l}\beta =\frac{\Delta I_{c}}{\Delta I_{B}}= \frac{(4-2)mA}{(20-10)\mu A}= \frac{2\times 10^{-3}}{10\times 10^{-6}}= 200\end{array} \)

Related Links
The unit of specific resistance is
\(hat{i}+hat{j}\) is">The unit vector along \(hat{i}+hat{j}\) is
The value (s) of ∫₀¹ [x⁴ (1 - x)⁴ / (1 + x²)] dx is (are)
The value of (ⁿC₁)² + (ⁿC₂)² + (ⁿC₃)² +... + (ⁿC_n)² is
The value of (2.¹P₀-3.²P₁+4.³P₂-..... up to 51^th term) +(1!-2!+3!-...... up to 51^th term) is equal to
\((cos \pi/2 + i \: sin \pi/2)(cos \pi/4 + i \: sin \pi/4)(cos \pi/8 + i \: sin \pi/8)...infinity \: is\)">The value of \((cos \pi/2 + i \: sin \pi/2)(cos \pi/4 + i \: sin \pi/4)(cos \pi/8 + i \: sin \pi/8)...infinity \: is\)
\(\begin{vmatrix} sin\alpha &cos\alpha &sin(\alpha+\gamma) \\ sin\beta&cos\beta &sin(\beta+\gamma) \\ sin\delta&cos\delta &sin(\gamma+\delta) \end{vmatrix}\) is">The value of \(\begin{vmatrix} sin\alpha &cos\alpha &sin(\alpha+\gamma) \\ sin\beta&cos\beta &sin(\beta+\gamma) \\ sin\delta&cos\delta &sin(\gamma+\delta) \end{vmatrix}\) is
\(\int_{-2}^2\|3x^2-3x-6\|dx\) is">The value of \(\int_{-2}^2\|3x^2-3x-6\|dx\) is