| ASSERTION: A current carrying coil is equivalent to a magnetic dipole having dipole moment NiA. |
| REASON: A current Carrying loop is equivalent to a bar magnet. |
A) If both assertion and reason are true and reason is the correct explanation of assertion.
B) If both assertion and reason are true and reason is not the correct explanation of assertion.
C) If assertion is true but reason is false.
D) If both assertion and reason are false.
E) If assertion is false but reason is true.
Correct Answer: B
Solution :
Magnetic field of induction produced by a current carrying coil at some far away axial point. \[B=\frac{{{\mu }_{0}}}{4\pi }\frac{2\left( NiA \right)}{{{x}^{3}}}\] While magnetic field of induction produced by a magnetic dipole having magnetic dipole moment at some far away axial point, \[B=\frac{{{\mu }_{0}}}{4\pi }\left( \frac{2M}{{{x}^{3}}} \right)\]
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