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Question
The magnetic moment of a circular coil carrying current (I), having radius (r) and number of turns (n) is proportional to ____________.
Options
`1/"r"^2`
r2
`1/"r"`
r
MCQ
Fill in the Blanks
Solution
The magnetic moment of a circular coil carrying current (I), having radius (r) and number of turns (n) is proportional to r2.
Explanation:
`"Magnetic moment" = pir^2 "I" `
It is proportional to r2
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Axial Magnetic Field Produced by Current in a Circular Loop
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