Which logic operation yield a high output for two high inputs?

An audio tuning circuit is an application of a:

Which of the following is a nonlinear circuit element?

Which of the following circuit elements is NOT likely to be found in a 120 VAC to 12 VDC adapter?

True or False? Lightbulb power ratings are only correct for the rated voltage.

A string of decorative holiday lights is lit except for two burnt-out bulbs. Are the bulbs of the string wired in parallel or series with each other?

In a system with a transmission multiplexer and a reception demultiplexer, how many outputs is it typical for the multiplxer to possess?

What is Wein Bridge used for?

The self-induced back voltage in a circuit that occurs when an inductive DC circuit is opened may be safely routed away from the switch with a diode connected across the inductor and against the DC voltage. What is the main disadvantage of this practice?

Dithering of an audiofrequency signal typically occurs at what stage?

A "bias tee" consists of a single output that is capacitively coupled to a radiofrequency signal and inductively coupled to a DC signal. What is the primary purpose of this device?