If a piece of metal was thought to be magnet, which one of the following observations would offer conclusive evidence
If a piece of metal was thought to be magnet, which one of the following observations would offer conclusive evidence
- A
It attracts a known magnet
- B
It repels a known magnet
- C
Neither (a) nor (b)
- D
It attracts a steel screw driver
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A long magnet is cut in two parts in such a way that the ratio of their lengths is $ 2 : 1. $ The ratio of pole strengths of both the section 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:
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