Consider a push-pull follower amplifier: an npn and a pnp transistor connected in series between the positive and negative terminals of a voltage supply to which signal is input to the base of each and output to ground from their collector-emitter connection. In which class is such an amplifier?

Which kind of filter is produced by placing an input voltage across the series combination of a capacitor and a resistor and using the voltage across the resistor as an output?

Of the following four types of digital latches, which one can be configured (with cross-couplings) to operate as the other three?

Which model makes the simplifying assumption that all components in a circuit are ideal and all wires conduct perfectly?

Of what safety device is this a description: A primary circuit that is magnetically coupled to a secondary circuit in which imbalance of hot and neutral current is measured?

What is the typical low-voltage cutoff for a "high" signal in transistor-transistor logic (TTL)?

To what does the "sample rate" of a signal refer?

True or False? Differential signalling can be employed in both analog circuits and digital circuits.

Which of these is NOT a part of a regular DC power supply?

Which of these is an active electronic component?

Which of these is a passive electronic component?