Navigate

A common emitter amplifier is designed with n-p-n transistor (α=0.99).

A common emitter amplifier is designed with n-p-n transistor (α=0.99). The input impedence is 1kΩ and load is 10kΩ. The voltage gain will be

Options

(a) 9900
(b) 99
(c) 9.9
(d) 990

Correct Answer:

990

Explanation:

Voltage gain = β × Resistance gain

β = α/(1-α) = 0.99 / (1-0.99) = 99

Resistance gain = (10 × 10³) = 10

Voltage gain = 99 × 10 = 990

ML2015
admin:

Related Questions

  1. An open knife edge of mass 200g is dropped from height 5m on a cardboard
  2. A juggler maintains four balls in motion,making each of them to rise
  3. A body is moving in a vertical circle. The string must remain taut at the highest point
  4. Three fourth of the active material decays in a radioactive sample in 3/4 sec
  5. If λ₁ and λ₂ are the wavelengths of the first members of the Lyman and Paschen