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Magnetic field lines created by current carrying wire are?

Correct answer: D. Circular

  • A. Helical
  • B. Elliptical
  • C. Hyperbolic
  • D. Circular

Explanation

The correct answer is that the magnetic field lines around a straight current-carrying wire are circular. These field lines form concentric circles with centers along the wire itself. This pattern can be determined using the Right-Hand Thumb Rule: if you grasp the wire with your right hand, with the thumb pointing in the direction of the current, your fingers will curl in the direction of the magnetic field lines.Options A, B, and C are incorrect because helical, elliptical, and hyperbolic shapes do not accurately describe the magnetic field lines generated by a straight wire.

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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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