What is the typical maximum efficiency range of a class B amplifier?

For a transconductance amplifier, the output resistance with feedback, R_of, is:

Which of the following transistor biasing circuits showcases the better performance?

Find the ratio of final reverse saturation current to initial reverse saturation current if the change in temperature is 20°C.

An amplifier has a voltage gain of 100 V/V and a current gain of 1000 A/A. What is the value of the power gain in decibels (dB)?

An amplifier has output impedance Z_o = 5 kΩ, voltage gain A = 100, and feedback factor B = 0.02. Find the output impedance of the feedback amplifier.

Transconductance is the ratio of:

In a bipolar junction transistor (BJT), if the collector-base junction is reverse-biased and the base-emitter junction is forward-biased, which region is the BJT operating in?

How does the lower cutoff frequency change with cascading of amplifiers?

A certain network consists of a large number of ideal linear resistors, one of which is R, and two constant ideal sources. The power consumed by R is P1 when only the first source is active, and P2 when only the second source is active. If both sources are active simultaneously, then the power consumed by R is