If a magnet of pole strength $m$ is divided into four parts such that the length and width of each part is half that of initial one, then the pole strength of each part will be
If a magnet of pole strength $m$ is divided into four parts such that the length and width of each part is half that of initial one, then the pole strength of each part will be
- A
$m/4$
- B
$m/2$
- C
$m/8$
- D
$4m$
Similar Questions
A closely wound solenoid of $800$ turns and area of cross section $2.5 \times 10^{-4} \;m ^{2}$ carries a current of $3.0\; A .$ Explain the sense in which the solenoid acts like a bar magnet. What is its associated magnetic moment?
A closely wound solenoid of $800$ turns and area of cross section $2.5 \times 10^{-4} \;m ^{2}$ carries a current of $3.0\; A .$ Explain the sense in which the solenoid acts like a bar magnet. What is its associated magnetic moment?
Two bar magnets having same geometry with magnetic moments $M$ and $2 M$, are firstly placed in such a way that their similar poles are same side then its time period of oscillation is $T_{1}$. Now the polarity of one of the magnet is reversed then time period of oscillation is $T_{2},$ then
Two bar magnets having same geometry with magnetic moments $M$ and $2 M$, are firstly placed in such a way that their similar poles are same side then its time period of oscillation is $T_{1}$. Now the polarity of one of the magnet is reversed then time period of oscillation is $T_{2},$ then
- [AIPMT 2002]
Two magnets, each of magnetic moment $‘M’ $ are placed so as to form a cross at right angles to each other. The magnetic moment of the system will be
Two magnets, each of magnetic moment $‘M’ $ are placed so as to form a cross at right angles to each other. The magnetic moment of the system will be
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]
What is pole strength of a bar magnet ? Show the magnetic dipole moment in terms of pole strength.
What is pole strength of a bar magnet ? Show the magnetic dipole moment in terms of pole strength.