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Analog Circuits
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Analog circuits miscellaneous
» Question
Analog circuits miscellaneous
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Moderate Questions
Analog Circuits
Analog circuits miscellaneous
Give that the op-amp is ideal, the output voltage V
0
is
4 V
6 V
7.5 V
12.12 V
Correct Option:
B
V
A
= 2V
and
0 - V
A
=
V
A
- V
0
R
2R
⇒
V
0
=
V
A
+ V
A
2
2
⇒ V
0
= 3V
A
= 6V
Alternately :
V
0
= 3iR
Since iR = 2V (ideal op-amp)
∴ V
0
= 3 × 2 = 6 volts
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