What does a Q-point of a transistor indicate?

What is the common-mode-rejection-ratio (CMRR) of an ideal op-amp?

What is the term used for a circuit in which, for a sinusoidal input with frequency f, any steady state output is also sinusoidal with frequency f?

In an alternating-current circuit, what is the relationship between the impedance of a capacitor and the frequency of the current?

A typical material used for capacitor leads is

The voltage at which a Zener diode starts conducting when reverse biased is called: