- #1
A current source can have any voltage you choose around it. A current source has infinite impedance.jocke said:This is a strange exercise! Who did it?
The voltage over the 4 ohm resistor must be 24 V.
So the the current -I2 is 24/4=6 A.
Why is that? A current source cannot have voltage, i.e it is zero.
In practical life this is not possible.
If the target is to teach circuit analysis, I don't know if it is a good idea
with such examples.
Superposition is a principle in circuit analysis that states that the total response of a linear system is equal to the sum of the responses to individual inputs. This means that the effects of each individual input can be analyzed separately and then combined to determine the overall response of the circuit.
To use superposition in circuit analysis, you first need to identify all the independent sources in the circuit. Then, you analyze the circuit with only one independent source at a time, while setting all other independent sources to 0 (short circuit for voltage sources and open circuit for current sources). Finally, you combine the individual responses to determine the overall response of the circuit.
Superposition simplifies the analysis of complex circuits by breaking them down into smaller, more manageable parts. It also allows for the analysis of circuits with multiple sources, which can be difficult to solve using other methods.
Superposition can only be used with linear circuits, meaning that the components in the circuit must follow Ohm's law and have a linear relationship between voltage and current. It also cannot be used with circuits containing dependent sources.
Yes, superposition can be applied to both DC and AC circuits. However, in AC circuits, the individual responses must be calculated using phasor analysis instead of the standard analysis used for DC circuits.