Question
Download Solution PDFMagnetic field at the centre of a circular loop of area A is B. The magnetic moment of the loop is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Magnetic field: The region around the current-carrying wire or around a magnet in which the magnetic force on other current-carrying wire or magnets can be experienced is called the magnetic field.
The magnetic field (B) at the center of a circular coil is given by:
Where μ0 is the permeability of free space, N is the number of turns, I is current and r is the radius.
Calculation:
Let r be the radius of the circular loop.
∴ A = πr2
Or
The magnetic field at the center of the loop is
The magnetic moment of the loop is
Last updated on May 26, 2025
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