Basic Op-Amp Circuits Questions

• A triangular-wave oscillator can consist of an op-amp comparator, followed by a(n)
• A two-pole high-pass active filter would have a roll-off rate of
• Initially, the closed-loop gain (Acl) of a Wien-bridge oscillator should be
• If the input to a comparator is a sine wave, the output is a
• A zero-level detector is a
• The formula shows that for a given capacitor, if the voltage changes at a constant rate with respect to time, the current will
• The center frequency of a band-pass filter is always equal to the
• If the value of resistor Rf in an averaging amplifier circuit is equal to the value of one input resistor divided by the number of inputs, the output will be equal to
• A comparator is an example of a(n)
• A digital-to-analog converter is an application of the
• The ramp voltage at the output of an op-amp integrator
• In an averaging amplifier, the input resistances are
• A basic series regulator has
• When the capacitance in an active high-pass filter increases, the critical frequency decreases.
• The feedback component in an op-amp integrator is a capacitor.
• A zero-level detector is a type of comparator circuit.
• When used as a comparator, an op-amp is wired in a closed-loop configuration.
• To operate properly, an oscillator requires an external ac input signal.
• The output voltage of a summing amplifier is proportional to the product of the input voltages.
• The effectiveness of a filter in rejecting signals beyond cutoff frequency is a function of the filter roll-off rating.