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Op amps

Last updated about 7 years ago

5 Nsɛmmisa

Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

Introductory Op amps multiple choice

1

1

1

1

1

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1.

Output resistance of an actual op-amp is

45Ω

46Ω

70Ω

75Ω

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2.

Impedance of ideal op-amp is

zero

1

infinite

2

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3.

Amplifier produces output with more

power only

voltage only

current only

power and voltage

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4.

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

two

four

six

three

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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