-EquinoX- said:so is it:
i2 + i3 + i7 -i4 - i6 = 0
is this true?
based on the number that is there?
Kirchoff's current law for an opamp states that the sum of all currents entering and exiting the input terminals of an opamp is equal to zero. This means that the input current at the non-inverting terminal is equal to the input current at the inverting terminal.
Kirchoff's current law is important for opamps because it allows us to analyze the behavior of the opamp circuit and make accurate predictions about its output. It also helps us ensure that the opamp is operating within its limits and not drawing excessive current.
In opamp circuits, Kirchoff's current law is applied by assuming that no current flows into the input terminals of the opamp. This allows us to simplify the analysis of the circuit and make use of other laws, such as Kirchoff's voltage law, to solve for the output voltage.
Technically, yes, Kirchoff's current law can be violated in opamp circuits. However, this would only occur in extreme cases where the opamp is not functioning properly or is operating outside of its recommended conditions. In most practical cases, Kirchoff's current law is valid for opamp circuits.
One common misconception is that Kirchoff's current law only applies to DC circuits. In reality, it is also applicable to AC circuits and can be used to analyze the behavior of opamps in both DC and AC conditions. Another misconception is that Kirchoff's current law is only valid for ideal opamps, but it can also be applied to real-world opamps with some modifications.