Write the expression for the magnetic moment of a circular coil of area A carrying a current I, in a vector form. [Foreign 2014]
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Given:
The magnetic moment of a circular coil of area A carrying a current I.
To find:
Write the expression for the magnetic moment of a circular coil of area A carrying a current I, in a vector form.
Solution:
From given, we have,
The magnetic moment of a circular coil of area A carrying a current I.
Magnetic Moment,
M = IA
where I = current
A = area
Area of the circular coil, A = πr²
Therefore, we have,
M = I (πr²) amp.m²
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