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opamp circuit calculation problem

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rampat

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opamp circuit problem

Hi All

Can someone please give me the equation and current through the resistor 100 Ohm in attached picture ?
thanks
 

Re: opamp circuit problem

The voltage on the right side of the 1Ohm resistor is -0.5V (0.5V-1A*1Ohm) . Thus trough the 4Ohm 0.125A is flowing. This implies that the opamp sinks 1.125A. Across the 100Ohm 112.5V is dropping. Easy, isn't it?
 

Re: opamp circuit problem

I think it will be ((0-(-0.5))/4+(0.5+0.5)/2+(0-(-0.5)/1)=1.625A of current will be flowing through 100Ohm resistor....
 

Re: opamp circuit problem

1.625A of course. I have missed a branch.
 

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