Multiple choice

Three identical amplifiers with each one having a voltage gain of 50, input resistance of 1 K$\Omega$and output resistance of 250 $\Omega$, are cascaded. The open circuit voltage gain of the combined amplifier is

  1. 49 dB

  2. 51 dB

  3. 98 dB

  4. 102 dB

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation