Sign up for FREE

Op amps

Last updated over 6 years ago

5 questions

Note from the author:

Introductory Op amps multiple choice

1

1

1

1

1

Question 1

1.

Output resistance of an actual op-amp is

 45Ω

 46Ω

 70Ω

 75Ω

Question 2

2.

Impedance of ideal op-amp is

zero

1

infinite

2

Question 3

3.

Amplifier produces output with more

power only

voltage only

current only

power and voltage

Question 4

4.

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

two

four

six

three

Question 5

5.

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

The external power supply

The inverting input

The non-inverting input

Volatge above ground