# Operational Amplifiers MCQ Test ## Practice Operational Amplifiers MCQ Test & Online Quiz to Test Your Knowledge

We have listed below the Operational Amplifiers MCQs that checks your basic knowledge of Operational Amplifiers. This Operational Amplifiers MCQ Test contains 20+ Multiple Choice Questions. You have to select the right answer to the question to check your final preparation for the Operational Amplifiers/Electrical Engineering Exams. Finally, you can also download below the Operational Amplifiers MCQ PDF completely free.

• The basic role of an operational amplifier is to amplify and output the voltage difference between the two input pins.
• The basic role of an operational amplifier is to input the voltage difference between the two input pins.
• Both A and B
• None of the above
• half of either collector current
• equal to either collector current
• two times either collector current
• equal to the difference in base currents
• difference between two emitter currents
• sum of two emitter currents
• collector current divided by current gain
• collector voltage divided by collector resistance
• Difference amplifier
• Comparator
• Single ended
• Voltage follower
• linear regulator
• switching regulator
• shunt regulator
• dc-to-dc converter
• Virtual ground is only a voltage reference.
• Virtual ground is only a current reference
• Virtual ground is only a power reference
• None of the above
• Differential amplifier
• Oscillator
• Rectifier
• None of the above
• Central Mode Rejection Ratio
• Cross Mode Rejection Ratio
• Common Model Rejection Ratio
• Common Mode Rejection Ratio
• simply a linear Integrated Circuit (IC) having multiple-terminals
• simply a hyper Integrated Circuit (IC) having multiple-terminals
• simply a cross Integrated Circuit (IC) having multiple-terminals
• None of the above
• Vout = AOL (V+ * V)
• Vout = AOL (V+/ V)
• Vout = AOL (V+ + V)
• Vout = AOL (V+ – V)
• difference between two base currents
• average of two base currents
• collector current divided by current gain
• None of the above
• Maximum rate of change of output voltage with time
• Minimum rate of change of output voltage with time
• Moderate rate of change of output voltage with time
• None of the above
• Infinite voltage gain
• Infinite bandwidth
• Infinite output resistance
• Infinite slew rate
• Signals can be amplified without attenuation
• Output can drive infinite number of device
• Output voltage occurs simultaneously with input voltage changes
• Output common-mode noise voltage is zero
• to control the output voltage
• to obtain finite output voltage
• to receive zero noise output voltage
• None of the above
• Operand amplitude
• Operational Amplifier
• Operational amplitude
• None of the above
• Linear
• Non-linear
• Frequency-dependent
• All of the above
• Henry
• David
• Richard
• Karl D. Swartzel Jr.
• Insta amplifier
• Interior amplifier
• Instrumentation amplifier
• None of the above
• Low drift
• Low DC offset
• High open-loop gain
• All of the above