132-21.Which of the following statementsdescribes output signal number one if theinput signals are 180 degrees out ofphase with each other?1.A sine wave in phase with inputsignal number one2.A sine wave in phase with inputsignal number two3.A sine wave in phase with outputsignal number two4.Not a sine wave2-22.Which of the following statementsdescribes the output signal if the inputsignals are 180 degrees out of phase witheach other and the output signal is takenbetween the output terminals?1.A sine wave2.Not a sine wave3.A sine wave 90 degrees out of phasewith input signal number one4.A sine wave in phase with inputsignals number one and two2-23.If the input amplitudes are increased to15 millivolts and are 180 degrees out ofphase, what will be the peak-to-peakamplitude of the combined output?1.1 volt2.2 volts3.3 volts4.1.5 volts2-24.What will be the peak-to-peak amplitudeof the combined output if the inputs are 6millivolts peak-to-peak, 180 degrees outof phase, and the gain is 20?1.2 volts2.2.4 volts3.0.12 volts4.0.24 volts2-25.Which of the following is NOT arequirement for an operational amplifier?1.Very high gain2.Very high input impedance3.Very high output impedance4.Very low output impedance2-26.Which of the following types ofcomponents are used in most operationalamplifiers?1.Transistor circuits2.Electron tube circuits3.Both 1 and 2 above4.Integrated circuitsTHIS SPACE LEFT BLANKINTENTIONALLY.
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