Which of the following define(s) the conversion efficiency?

Which of the following gains is less than 1 for a common-base configuration?

Under which of the following conditions is the output impedance of the network approximately equal to R_C for a common-emitter fixed-bias configuration?

Refer to this figure. If an emitter bypass capacitor was installed, determine the value of R_in(base).

For the common-emitter amplifier ac equivalent circuit, all capacitors are