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Op amps

Last updated about 7 years ago

5 questions

Note from the author:

1

1

1

1

1

Introductory Op amps multiple choice

Question 1

1.

Question 2

2.

Question 3

3.

Question 4

4.

Question 5

5.

 Output resistance of an actual op-amp is 

 45Ω

 46Ω

 70Ω

 75Ω

 Impedance of ideal op-amp is 

zero

1

infinite

2

 Amplifier produces output with more 

power only

voltage only

current only

power and voltage

The figure below shows an ideal op-amp. How many power supplies does it have?

two

four

six

three

In the opamp shown below, what does the V+ represent?

The external power supply

The inverting input

The non-inverting input

Volatge above ground