railway RRB JE (CBT I + CBT II) Mock Test 2024 Analog Electronics Bipolar Junction Transistors BJT As a Amplifier
Which of the following statements about voltage amplifiers is INCORRECT?
1
It provides voltage output proportional to the voltage input
2
If the input resistance is large as compared with the source resistance, then Vi(input voltage) = Vs(source voltage).
3
In this circuit, the proportionality factor depends on the magnitude of the source and load resistance.
4
If the load resistance is large as compared with the output resistance, then V0 = AvVr