What is the input impedance of a transistor amplifier circuit if I1 = 10mA, I2 = 20mA, V1 = 25V, V2 = 15V?
(a) 0.5kΩ
(b) 2kΩ
(c) 1.5kΩ
(d) 2.5kΩ
This question was posed to me in an online quiz.
The question is from Analysis of Transistor Amplifier Circuit using h-parameters in chapter Small-Signal Low-Frequency AC models of Transistors of Electronic Devices & Circuits