Diamagnetic solids are `"________"` By an external magnetic field.
Diamagnetic solids are `"________"` By an external magnetic field.
A
weakly repelled
B
strongly repelled
C
weakly attracted
D
strongly attracted
Text Solution
Verified by Experts
The correct Answer is:
1
Because their constituent particles do not have any unpaired electrons.The magneitc moment possessed by an electrons with spin in one direction is cancelled by that with spin in the opposite directions. Examples of diamagnetic materials are benzene ,`NaCl` and `TiO_(2)`.
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Knowledge Check
Paramagnetic solids are "__________" by an external magnetic field
Paramagnetic solids are "__________" by an external magnetic field
A
strongly repelled
B
weakly attracted
C
weakly repelled
D
strongly attracted
Submit
Ferromagnetic solids are……. By an external magnetic field
Ferromagnetic solids are……. By an external magnetic field
A
weakly attracted
B
strongly repelled
C
weakly repelled
D
strongly attrated
Submit
Assertion:Paramagneic substances get poorly attracted in magnetic field. Reason: Because magnetic dipoles are aligned along external magnetic field weakly.
Assertion:Paramagneic substances get poorly attracted in magnetic field. Reason: Because magnetic dipoles are aligned along external magnetic field weakly.
A
If both assertion and reason are true and reason is the correct explanation of assertion.
B
If both assertion and reson are true but reason is not the correct explanation of assertion.
C
if assertion is true but reason is false.
D
If both assertion and reason are false.
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Read the following passage and answer question on the basis of your understanding of the following passage and the related studied concepts. Diamagnetic substances are those which have tendency to move from stronger to the weaker part of the external magnetic field and a magnet would repel a diamagnetic substance. When a bar of diamagnetic material is placed in an external magnetic field, the field lines are repelled or expelled and the field inside the material is slightly reduced. Each electron in an atom orbiting around nucleus is equivalent to a current carrying loop and thus possesses orbital angular moment. Diamagnetic substances are the ones in which resultant magnetic moment of all the electrons in an atom is zero. When a magnetic field is applied, those electrons having orbital magnetic moment in the same direction slow down and those in the opposite direction speed up due to induced current in accordance with lenz's law. Thus, the substance develops a net magnetic moment in a direction opposite to that of applied magnetic field and hence repulsion The most exotic diamagnetic materials are superconductors. These are metals cooled to very low temperatures and exhibit both perfect conductivity and perfect diamagnetism. This phenomenon was discovered by Meissner. Super conducting magnets can be exploited for running magnetically levitated bullet trains. Show modification of field lines when a bar of diamagnetic substance is placed in a magnetic field.
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Read the following passage and answer question on the basis of your understanding of the following passage and the related studied concepts. Diamagnetic substances are those which have tendency to move from stronger to the weaker part of the external magnetic field and a magnet would repel a diamagnetic substance. When a bar of diamagnetic material is placed in an external magnetic field, the field lines are repelled or expelled and the field inside the material is slightly reduced. Each electron in an atom orbiting around nucleus is equivalent to a current carrying loop and thus possesses orbital angular moment. Diamagnetic substances are the ones in which resultant magnetic moment of all the electrons in an atom is zero. When a magnetic field is applied, those electrons having orbital magnetic moment in the same direction slow down and those in the opposite direction speed up due to induced current in accordance with lenz's law. Thus, the substance develops a net magnetic moment in a direction opposite to that of applied magnetic field and hence repulsion The most exotic diamagnetic materials are superconductors. These are metals cooled to very low temperatures and exhibit both perfect conductivity and perfect diamagnetism. This phenomenon was discovered by Meissner. Super conducting magnets can be exploited for running magnetically levitated bullet trains. Does diamagnetism depend on the temperature ?
Watch solution
Read the following passage and answer question on the basis of your understanding of the following passage and the related studied concepts. Diamagnetic substances are those which have tendency to move from stronger to the weaker part of the external magnetic field and a magnet would repel a diamagnetic substance. When a bar of diamagnetic material is placed in an external magnetic field, the field lines are repelled or expelled and the field inside the material is slightly reduced. Each electron in an atom orbiting around nucleus is equivalent to a current carrying loop and thus possesses orbital angular moment. Diamagnetic substances are the ones in which resultant magnetic moment of all the electrons in an atom is zero. When a magnetic field is applied, those electrons having orbital magnetic moment in the same direction slow down and those in the opposite direction speed up due to induced current in accordance with lenz's law. Thus, the substance develops a net magnetic moment in a direction opposite to that of applied magnetic field and hence repulsion The most exotic diamagnetic materials are superconductors. These are metals cooled to very low temperatures and exhibit both perfect conductivity and perfect diamagnetism. This phenomenon was discovered by Meissner. Super conducting magnets can be exploited for running magnetically levitated bullet trains. Give three examples of diamagnetic substances.
Watch solution
Read the following passage and answer question on the basis of your understanding of the following passage and the related studied concepts. Diamagnetic substances are those which have tendency to move from stronger to the weaker part of the external magnetic field and a magnet would repel a diamagnetic substance. When a bar of diamagnetic material is placed in an external magnetic field, the field lines are repelled or expelled and the field inside the material is slightly reduced. Each electron in an atom orbiting around nucleus is equivalent to a current carrying loop and thus possesses orbital angular moment. Diamagnetic substances are the ones in which resultant magnetic moment of all the electrons in an atom is zero. When a magnetic field is applied, those electrons having orbital magnetic moment in the same direction slow down and those in the opposite direction speed up due to induced current in accordance with lenz's law. Thus, the substance develops a net magnetic moment in a direction opposite to that of applied magnetic field and hence repulsion The most exotic diamagnetic materials are superconductors. These are metals cooled to very low temperatures and exhibit both perfect conductivity and perfect diamagnetism. This phenomenon was discovered by Meissner. Super conducting magnets can be exploited for running magnetically levitated bullet trains. What should be the value of magnetic susceptibility and relative magnetic permeability of a superconductor ?
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Read the following passage and answer question on the basis of your understanding of the following passage and the related studied concepts. Diamagnetic substances are those which have tendency to move from stronger to the weaker part of the external magnetic field and a magnet would repel a diamagnetic substance. When a bar of diamagnetic material is placed in an external magnetic field, the field lines are repelled or expelled and the field inside the material is slightly reduced. Each electron in an atom orbiting around nucleus is equivalent to a current carrying loop and thus possesses orbital angular moment. Diamagnetic substances are the ones in which resultant magnetic moment of all the electrons in an atom is zero. When a magnetic field is applied, those electrons having orbital magnetic moment in the same direction slow down and those in the opposite direction speed up due to induced current in accordance with lenz's law. Thus, the substance develops a net magnetic moment in a direction opposite to that of applied magnetic field and hence repulsion The most exotic diamagnetic materials are superconductors. These are metals cooled to very low temperatures and exhibit both perfect conductivity and perfect diamagnetism. This phenomenon was discovered by Meissner. Super conducting magnets can be exploited for running magnetically levitated bullet trains. What is Meissner effect?
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