Physics Moving Charge and Magnetism Magnetic Force, Magnetic Field,Magnetic Moment, Magnetic Moment, Induction Single Correct MCQ
Published on: September 12, 2026

The magnetic field near a current carrying conductor is given by

A
Coulomb’s law
B
Lenz’ law
C
Biot-savart’s law
D
Kirchoff’s law

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Text Solution

Verified by Experts
The correct answer is:
C
Step 1: Understand that the magnetic field around a current-carrying conductor can be described by a specific physical law.
Step 2: Review the provided options:
  • Coulomb’s law: Describes the electrostatic force between charged particles.
  • Lenz’ law: Relates to the direction of induced currents in electromagnetic induction.
  • Biot-Savart’s law: Describes the magnetic field generated by a continuously carrying current.
  • Kirchhoff’s law: Pertains to the conservation of charge and energy in electrical circuits.
Step 3: Identify that the correct law that specifically describes the magnetic field produced by a current-carrying conductor is the Biot-Savart law, which provides the magnetic field at a point in space due to an infinitesimal segment of current.
Conclusion: Therefore, the correct answer is Option C: Biot-Savart's law.

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