Op amps
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by Cherisse Crichlow
| 5 Questions
Note from the author:
Introductory Op amps multiple choice
1
1
Output resistance of an actual op-amp is
45Ω
46Ω
70Ω
75Ω
2
1
Impedance of ideal op-amp is

zero
1
infinite
2
3
1
Amplifier produces output with more
power only
voltage only
current only
power and voltage
4
1
The figure below shows an ideal op-amp. How many power supplies does it have?

two
four
six
three
5
1
In the opamp shown below, what does the V+ represent?

The external power supply
The inverting input
The non-inverting input
Volatge above ground
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