Answer: answers (1) and (2)

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Questions

2
When a differential amplifier is operated single-ended, …………

Answer: one input is grounded and signal is applied to the other

5
Of the values listed, the most realistic value for open-loop voltage gain of an OP-amp is ……

Answer: 100,000

6
The output of a particular Op-amp increases 8V in 12μs. The slew rate is …….

Answer: 0.67 V/μs

7
For an Op-amp with negative feedback, the output is …….

Answer: fed back to the inverting input

9
If the feedback resistor in Q15 (above question) is open, the voltage gain …….

Answer: increases

11
The input offset current equals the ……….

Answer: difference between two base currents

13
The tail current in a differential amplifier equals …….

Answer: sum of two emitter currents

18
A non inverting closed loop op amp circuit generally has a gain factor

Answer: Greater than one

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