Magnetic intensity for an axial point due to a short bar magnet of magnetic moment $M$ is given by
Magnetic intensity for an axial point due to a short bar magnet of magnetic moment $M$ is given by
- A
$\frac{{{\mu _0}}}{{4\pi }} \times \frac{M}{{{d^3}}}$
- B
$\frac{{{\mu _0}}}{{4\pi }} \times \frac{M}{{{d^2}}}$
- C
$\frac{{{\mu _0}}}{{2\pi }} \times \frac{M}{{{d^3}}}$
- D
$\frac{{{\mu _0}}}{{2\pi }} \times \frac{M}{{{d^2}}}$
Similar Questions
A bar magnet of length $10 \,cm$ and having the pole strength equal to $10^{-3}$ weber is kept in a magnetic field having magnetic induction $ (B)$ equal to $4\pi \times {10^{ - 3}}$ Tesla. It makes an angle of $30°$ with the direction of magnetic induction. The value of the torque acting on the magnet is
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A sheet is placed on a horizontal surface in front of a strong magnetic pole. A force is needed to:
$A$. hold the sheet there if it is magnetic.
$B$. hold the sheet there if it is non-magnetic.
$C$. move the sheet away from the pole with uniform velocity if it is conducting.
$D$. move the sheet away from the pole with uniform velocity if it is both, non-conducting and non-polar.
Choose the correct statement($s$) from the options given below:
A sheet is placed on a horizontal surface in front of a strong magnetic pole. A force is needed to:
$A$. hold the sheet there if it is magnetic.
$B$. hold the sheet there if it is non-magnetic.
$C$. move the sheet away from the pole with uniform velocity if it is conducting.
$D$. move the sheet away from the pole with uniform velocity if it is both, non-conducting and non-polar.
Choose the correct statement($s$) from the options given below:
- [NEET 2024]
Draw field lines on a bar magnet, a current carrying finite solenoid and electric dipole.
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