Navigate

What is the voltage gain in a common-emiiter amplifier, when input resistance is 4 Ω

What is the voltage gain in a common-emiiter amplifier, when input resistance is 4 Ω and load resistance is 24 Ω? Take β=0.6

Options

(a) 3.6
(b) 4.8
(c) 2.4
(d) 1.2

Correct Answer:

3.6

Explanation:

Input resistance Rᵢ = 4Ω

Load resistance Rʟ = 24Ω

Resistance gain = Rʟ / Rᵢ = 24Ω / 4Ω = 6

Current gain β = 0.6

Voltage gain = Current gain x Resistance gain

= 0.6 x 6 = 3.6

BHU2007
admin:

Related Questions

  1. In a laser tube, all the photons
  2. A black body radiates 20 W at temperature 227⁰C. It temperature of the black body
  3. A ball moving with velocity 2 m/s collides head on with another stationary ball
  4. The radius of the convex surface of a plano-convex lens is 20 cm and the refractive index
  5. A 220 volts input is supplied to a transformer. The output circuit draws