Two parallel wires carrying current in opposite direction:
Correct answer: A. Repel each other
- A. Repel each other
- B. Attract each other
- C. No effect on each other
- D. None of these
Explanation
According to the right-hand rule, the magnetic field produced by one wire will form concentric circles around the wire, and the magnetic field produced by the other wire will also form concentric circles but in the opposite direction. Since the magnetic fields are in opposite directions, they will exert a force on each other that tends to push the wires apart. Therefore, the wires will repel each other.
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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