G goodness52200 New Member Oct 17, 2005 #1 In the figure, why Ia=Ib (use observatinoal method) **broken link removed** Thanks a lot
A aibelectronics New Member Oct 17, 2005 #2 reply the voltages at the inverting and non-inverting inputs are equal (v-=v+), the two resistors to the supply are also equal (R1=R1) and I assume vI1 and vI2 are equal? hence Ia=Ib.
reply the voltages at the inverting and non-inverting inputs are equal (v-=v+), the two resistors to the supply are also equal (R1=R1) and I assume vI1 and vI2 are equal? hence Ia=Ib.