Hello guys,

so i was studying for exams, and i came across a confusing excersice for me as a beginner.

so i have this circuit, s1 is open as you can see in the picture, and i need to find the current I in the circuit

I have the solution, but i dont understand it. Hier is the solution:

my question is: Why do we just take the current of the current source? is the voltage source not generating current as well??

My soulution would be to calculate the current of the voltage source and then add it to the courrent of the current source.

Can you explain to me please, why the sum of current is equal to I0? Its like we are ignoring the effect of U0 in the circuit. Is it because U0 is an ideal voltage source? or is it because of the 0 potential (i mean the ground)?

so i was studying for exams, and i came across a confusing excersice for me as a beginner.

so i have this circuit, s1 is open as you can see in the picture, and i need to find the current I in the circuit

I have the solution, but i dont understand it. Hier is the solution:

my question is: Why do we just take the current of the current source? is the voltage source not generating current as well??

My soulution would be to calculate the current of the voltage source and then add it to the courrent of the current source.

Can you explain to me please, why the sum of current is equal to I0? Its like we are ignoring the effect of U0 in the circuit. Is it because U0 is an ideal voltage source? or is it because of the 0 potential (i mean the ground)?

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