A circular loop of wire carries a current. What is the shape of the magnetic fie

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Question: A circular loop of wire carries a current. What is the shape of the magnetic field lines around the loop? (2021)

Options:

Correct Answer: Concentric circles

Exam Year: 2021

Solution:

The magnetic field lines around a circular loop of wire carrying current are in the form of concentric circles.

A circular loop of wire carries a current. What is the shape of the magnetic field lines around the loop? (2021)

A circular loop of wire carries a current. What is the shape of the magnetic field lines around the loop? (2021)

Step 1: Understand that a circular loop of wire is like a ring.
Step 2: When current flows through the wire, it creates a magnetic field around it.
Step 3: Visualize the magnetic field lines; they are invisible lines that show the direction and strength of the magnetic field.
Step 4: For a circular loop, the magnetic field lines form circles around the loop.
Step 5: These circles are called concentric circles because they share the same center as the loop.

Magnetic Field Around Current-Carrying Conductors – The magnetic field generated by a current-carrying wire forms closed loops around the wire, with the direction determined by the right-hand rule.
Shape of Magnetic Field Lines – For a circular loop, the magnetic field lines are concentric circles that are perpendicular to the plane of the loop.