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. A thermocouple is made from two metals, antimony and bismuth. If one junction
  2. A small part of the rim of a fly wheel breaks off while it is rotating at a constant
  3. The periodic waves of intensities I₁ and I₂ pass through a region at the same time
  4. If a steel wire of length l and magnetic moment M is bent into a semicircular arc,
  5. A Gaussian surface in the cylinder of cross-section πa² and length L is immersed