Two wires carry currents on same directions. the direction of magnetic field is opposite as shown in the fig , both the wires will attract each other. why the don't cancel the effect of each other as their direction is opposite?
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No, they won't cancel the force, instead, they will attract each other.
As I can see, you have correctly drawn the magnetic field lines on both the wires. Now, the magnetic field lines due to wire one for wire 2 will be inward (just see the magnetic field lines). Now if we find out the direction of force on second wire because of the field lines produced by the first wire, it will be towards the first wire (pointing towards left). An equal and opposite force will act on the first wire, and therefore, both will attract each other.
The rectangle you have drawn just shows that the number of magnetic field lines coming and leaving are equal in number and hence the flux is zero. I don't think the concept of forces on wires should be associated with flux being zero
As I can see, you have correctly drawn the magnetic field lines on both the wires. Now, the magnetic field lines due to wire one for wire 2 will be inward (just see the magnetic field lines). Now if we find out the direction of force on second wire because of the field lines produced by the first wire, it will be towards the first wire (pointing towards left). An equal and opposite force will act on the first wire, and therefore, both will attract each other.
The rectangle you have drawn just shows that the number of magnetic field lines coming and leaving are equal in number and hence the flux is zero. I don't think the concept of forces on wires should be associated with flux being zero
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Hi/ho is Ur correct answer
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