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Electromagnets

A circular cu...

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A circular current carrying loop is an equivalent to a magnetic dipole. Now a point on the axis of the loop is 1) a broad side on position 2) an end on position 3) both 1 and 2 4) neither 1 amd 2

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Q. A circular loop carrying a current is replaced by an equivalent magnetic dipole. A point on the axis of the loop is in

(a) end-on position
(b) broadside-on position
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Q. Assertion :A planar circular loop of area A and carrying current I is equivalent to magnetic dipole of dipole moment M

=

IA. Reason: At large distances, magnetic field of circular loop and magnetic dipole is same.

L

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P

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O X

d l

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\frac{B_{1}}{B_{2}}

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