MHT CET · Physics · Semiconductors
In a transistor amplifier, AC current gain is 64 , the load resistance is \(5400 \Omega\) and the input resistance of the transistor is \(540 \Omega\). The voltage gain is
- A \(540\)
- B \(600\)
- C \(640\)
- D \(6400\)
Answer & Solution
Correct Answer
(C) \(640\)
Step-by-step Solution
Detailed explanation
\(A_v = \beta_{ac} \frac{R_L}{R_{in}}\) \(A_v = 64 \times \frac{5400 \, \Omega}{540 \, \Omega}\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- Potential difference between the points A and B is nearly
MHT CET 2024 Easy - The magnetic flux near the axis and inside the air-core solenoid of length carrying current is Its magnetic moment will be (cross-sectional area of a solenoid is very small as compared to its length, SI units)MHT CET 2017 Easy
- If the maximum efficiency of a full wave rectifier is \(\mathrm{x} \%\) and that of half wave rectifier is \(\mathrm{y} \%\), then the relation between \(\mathrm{x}\) and \(\mathrm{y}\) isMHT CET 2023 Easy
- Ratio of longest wavelength corresponding to Lyman and Balmer series in hydrogen spectrum isMHT CET 2023 Easy
- Three vectors \(\vec{A}, \vec{B}\) and \(\vec{C}\) are such that \(\vec{A} \cdot \vec{B}=\vec{A} \cdot \vec{C}=0\), then \(\vec{A}\) is parallel to
\(\left[\cos 90^{\circ}=0\right]\)MHT CET 2020 Easy - Let \(A\) be the cross-sectional area and \(\rho\) be the specific resistance of a potentiometer wire. If \(I\) is the current passing through the wire, then the potential gradient along the length of the wire isMHT CET 2022 Easy
More PYQs from MHT CET
- The parametric representation of a point on the ellipse whose foci are \((-1,0)\) and \((7,0)\) and eccentricity \(1 / 2\), isMHT CET 2007 Easy
- \({}_{90}\mathrm{Th}^{232} \)\(\longrightarrow{ }_{82} \mathrm{~Pb}^{208}\). The number of \(\alpha\) and \(\beta\) -particles emitted during the above reaction isMHT CET 2007 Hard
- Which of the following elements has highest electronegativity?MHT CET 2025 Easy
- A uniform metal wire has length 'L', mass 'M' and density ' \(\mathrm{Q}\) '. It is under tension 'T"
and ' \(v^{\prime}\) is the speed of transverse wave along the wire. The area of cross-section of
the wire isMHT CET 2020 Medium - The area of the circle centred at \((1,2)\) and passing through \((4,6)\), isMHT CET 2007 Easy
- Which from following has highest boiling point?MHT CET 2024 Easy