154469
The polarity of an unmarked horse shoe magnet can be determined by using
1 a charged glass rod
2 a magnetic compass
3 an electroscope
4 another unmarked bar magnet
Explanation:
B A magnetic compass can be used to determine the polarity of any type of magnet.
NDA (II) 2012
Magnetism and Matter
154470
Susceptibility of ferromagnetic substance is
1 $>1$
2 $ \lt 1$
3 zero
4 1
Explanation:
A The susceptibility of a substance is a measure of how much it is magnetized in response to an applied magnetic field. In the case of a ferromagnetic substance, the susceptibility is greater than one, meaning that he substance is easily magnetized in the presence of an external magnetic field.
BITSAT-2006
Magnetism and Matter
154472
Magnetic force required to demagnetize the material
1 retainity
2 coercivity
3 energy loss
4 hysterisis
Explanation:
B For a ferromagnetic substance, coercivity is the intensity of the magnetic field that need to be applied to reduce the magnetization to zero when the samples magnetization reaches saturation. It is intensity of the magnetic field rather than magnetic force.
DCE-2007
Magnetism and Matter
154474
If a diamagnetic material is placed in a magnetic field, the flux density inside the material compared to that outside will be:
1 slightly less
2 slightly more
3 very much more
4 same
Explanation:
A When a diamagnetic material is placed in a magnetic field, it creates an induced magnetic field in the opposite direction to the applied magnetic field. This opposes the applied magnetic field and results in a slight decrease in the magnetic flux density inside the material compared to the outside. Therefore, the flux density inside the diamagnetic material is slightly less than the outside.
154469
The polarity of an unmarked horse shoe magnet can be determined by using
1 a charged glass rod
2 a magnetic compass
3 an electroscope
4 another unmarked bar magnet
Explanation:
B A magnetic compass can be used to determine the polarity of any type of magnet.
NDA (II) 2012
Magnetism and Matter
154470
Susceptibility of ferromagnetic substance is
1 $>1$
2 $ \lt 1$
3 zero
4 1
Explanation:
A The susceptibility of a substance is a measure of how much it is magnetized in response to an applied magnetic field. In the case of a ferromagnetic substance, the susceptibility is greater than one, meaning that he substance is easily magnetized in the presence of an external magnetic field.
BITSAT-2006
Magnetism and Matter
154472
Magnetic force required to demagnetize the material
1 retainity
2 coercivity
3 energy loss
4 hysterisis
Explanation:
B For a ferromagnetic substance, coercivity is the intensity of the magnetic field that need to be applied to reduce the magnetization to zero when the samples magnetization reaches saturation. It is intensity of the magnetic field rather than magnetic force.
DCE-2007
Magnetism and Matter
154474
If a diamagnetic material is placed in a magnetic field, the flux density inside the material compared to that outside will be:
1 slightly less
2 slightly more
3 very much more
4 same
Explanation:
A When a diamagnetic material is placed in a magnetic field, it creates an induced magnetic field in the opposite direction to the applied magnetic field. This opposes the applied magnetic field and results in a slight decrease in the magnetic flux density inside the material compared to the outside. Therefore, the flux density inside the diamagnetic material is slightly less than the outside.
154469
The polarity of an unmarked horse shoe magnet can be determined by using
1 a charged glass rod
2 a magnetic compass
3 an electroscope
4 another unmarked bar magnet
Explanation:
B A magnetic compass can be used to determine the polarity of any type of magnet.
NDA (II) 2012
Magnetism and Matter
154470
Susceptibility of ferromagnetic substance is
1 $>1$
2 $ \lt 1$
3 zero
4 1
Explanation:
A The susceptibility of a substance is a measure of how much it is magnetized in response to an applied magnetic field. In the case of a ferromagnetic substance, the susceptibility is greater than one, meaning that he substance is easily magnetized in the presence of an external magnetic field.
BITSAT-2006
Magnetism and Matter
154472
Magnetic force required to demagnetize the material
1 retainity
2 coercivity
3 energy loss
4 hysterisis
Explanation:
B For a ferromagnetic substance, coercivity is the intensity of the magnetic field that need to be applied to reduce the magnetization to zero when the samples magnetization reaches saturation. It is intensity of the magnetic field rather than magnetic force.
DCE-2007
Magnetism and Matter
154474
If a diamagnetic material is placed in a magnetic field, the flux density inside the material compared to that outside will be:
1 slightly less
2 slightly more
3 very much more
4 same
Explanation:
A When a diamagnetic material is placed in a magnetic field, it creates an induced magnetic field in the opposite direction to the applied magnetic field. This opposes the applied magnetic field and results in a slight decrease in the magnetic flux density inside the material compared to the outside. Therefore, the flux density inside the diamagnetic material is slightly less than the outside.
154469
The polarity of an unmarked horse shoe magnet can be determined by using
1 a charged glass rod
2 a magnetic compass
3 an electroscope
4 another unmarked bar magnet
Explanation:
B A magnetic compass can be used to determine the polarity of any type of magnet.
NDA (II) 2012
Magnetism and Matter
154470
Susceptibility of ferromagnetic substance is
1 $>1$
2 $ \lt 1$
3 zero
4 1
Explanation:
A The susceptibility of a substance is a measure of how much it is magnetized in response to an applied magnetic field. In the case of a ferromagnetic substance, the susceptibility is greater than one, meaning that he substance is easily magnetized in the presence of an external magnetic field.
BITSAT-2006
Magnetism and Matter
154472
Magnetic force required to demagnetize the material
1 retainity
2 coercivity
3 energy loss
4 hysterisis
Explanation:
B For a ferromagnetic substance, coercivity is the intensity of the magnetic field that need to be applied to reduce the magnetization to zero when the samples magnetization reaches saturation. It is intensity of the magnetic field rather than magnetic force.
DCE-2007
Magnetism and Matter
154474
If a diamagnetic material is placed in a magnetic field, the flux density inside the material compared to that outside will be:
1 slightly less
2 slightly more
3 very much more
4 same
Explanation:
A When a diamagnetic material is placed in a magnetic field, it creates an induced magnetic field in the opposite direction to the applied magnetic field. This opposes the applied magnetic field and results in a slight decrease in the magnetic flux density inside the material compared to the outside. Therefore, the flux density inside the diamagnetic material is slightly less than the outside.
