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In the circuit shown in the diagram, the...

In the circuit shown in the diagram, the operational amplifier may be assumed to be ideal. The current in the `12 kOmega` resistor is `I`.

What is the current `I_(f)` in the `72 k Omega` resistor?

A

`-6`

B

`I`

C

`-1//6 I`

D

`6I`

Text Solution

Verified by Experts

The correct Answer is:
B
Since the potential amplifier is assumed to be ideal, it `(Q)` does not sink nor source current. By Kirichhoff's current law, `I_(f)=I`.
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