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The input resistance of a silicon transistor is 100 W. Base current is changed by 40 µA which results in a change in collector current by 2mA. This transistor is used as a common emitter amplifier with a load resistance of 4 KΩ. The voltage gain of the amplifier is:
Options
(a) 2000
(b) 3000
(c) 4000
(d) 1000
Correct Answer:
2000
Explanation:
Voltage gain (Aᵥ) = Vₒᵤₜ / Vᵢₙ = Iₒᵤₜ / Iᵢₙ x Rₒᵤₜ / Rᵢₙ
Aᵥ = (2 x 10⁻³ / 40 x 10⁻⁶) x (4 x 10³ / 100)
= 2 x 100 = 2000
Related Questions: - The current gain of a transistor in common base configuration is 0.96.
- A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed of 2.00
- If capillary experiment is performed in vaccum, then a liquid under the condition
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Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The current gain of a transistor in common base configuration is 0.96.
- A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed of 2.00
- If capillary experiment is performed in vaccum, then a liquid under the condition
- Radius of orbit of satellite of earth is R. Its kinetic energy is proportional to
- Angle of minimum deviation for a prism of reractive index 1.5 equal to the angle
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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