Mag feild two wires opposite directions

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Two long, parallel wires carrying currents of 20 A and 10 A in opposite directions create distinct magnetic field regions. In region I, the magnetic field is directed out of the page and is never zero. In region III, it is possible for the magnetic field to be zero due to the opposing currents. The discussion emphasizes the importance of current direction in determining the magnetic field's behavior. Understanding these principles is crucial for solving related physics problems.
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Homework Statement



Two long, parallel wires carry currents of 20 A and 10 A in opposite directions, as in the figure below. Which of the following statements must be true? (Select all that apply.)

In region II the field is into the page and can be zero.
There are no points where the field is zero.
In region I the magnetic field is into the page and is never zero.
In region III it is possible for the field to be zero.
In region I the magnetic field is out of the page and is never zero.


Homework Equations





The Attempt at a Solution



i thought that the first and last statements were true because the direction of the first current is left to right and the one below it is right to left.
 
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Could you provide the picture? I need to know the direction of current flow.
 
Defennder said:
Could you provide the picture? I need to know the direction of current flow.
It won't let me but the top on which is 20 a goes from left to right and the bottom one is opposite
 
The answer is:

X In region I the magnetic field is out of the page and is never zero.
X In region III it is possible for the field to be zero.

Go Pack!
 
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