In the circuit shown in the diagram, the operational amplifier may be assumed to be ideal. The current in the 12 
resistor is 
What 
the current 
in the 72 
resistor?
A
B
C
D
6I
Text Solution
Verified by ExpertsThe correct answer is:
B
Since the operational amplifier is assumed to be ideal, it (Q) does not sink nor source current. By Kirchhoff’s current law, 
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