Two long, parallel conductors which are free to move are arranged 1.0 cm apart. A steady current of 20 A flows in each of the conductors in the same direction. The conductors:
Correct answer: B. Move towards each other
- A. Remains stationary
- B. Move towards each other
- C. Move away from each other
- D. Move at right angles to each other
Explanation
When two parallel wires carry current in the same direction, they exert equal and opposite attractive forces on each other. This causes them to move towards one another.
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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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