Two identical short bar magnets are placed at $120^{\circ}$ as shown in the figure. The magnetic moment of each magnet is $M$. Then the magnetic field at the point $P$ on the angle bisector is given by
Two identical short bar magnets are placed at $120^{\circ}$ as shown in the figure. The magnetic moment of each magnet is $M$. Then the magnetic field at the point $P$ on the angle bisector is given by
- A
$\frac{\mu_0}{4 \pi} \cdot \frac{M}{d^3}$
- B
$\frac{\mu_0}{4 \pi} \cdot \frac{2 M}{d^3}$
- C
$\frac{\mu_0}{4 \pi} \cdot \frac{2 \sqrt{2} M}{d^3}$
- D
$0$
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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]
Magnetic induction is a
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Magnetic moments of two bar magnets may be compared with the help of
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