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The vector sum of magnetic moments of all electrons inside an atom is the,

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Important Questions on Magnetism

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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 67
The electron in the hydrogen atom is moving with a speed of  2.3×106 m s-1 in an orbit of radius 0.53 A. Calculate the magnetic moment of the revolving electron.
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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 68
A charge q is spread uniformly over an isolated ring of radius R. The ring is rotated about its natural axis with an angular velocity ω. The magnetic dipole moment of the ring is
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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 69
If an electron of charge (-e) and mass me revolves around the nucleus of an atom having magnetic moment Mc, then angular momentum of electron is
 
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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 70
If M0 and L0 denote the orbital angular moment and the angular momentum of the electron due to its orbital motion, then the gyromagnetic ratio is given by
 
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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 71
The S.I. unit of gyromagnetic ratio is
 
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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 72
The electron in the hydrogen atom is moving with a speed of 2.5×106 m s-1 in an orbit of radius 0.5 A. Magnetic moment of the revolving electron is
 
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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 73

The electron in the hydrogen atom revolves around the nucleus in an orbit of radius 0.5 A. What is the equivalent magnetic moment, if the frequency of revolution of the electron is 1010 MHz?

 

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Physics Crash Course MHT-CET>Chapter 17 - Magnetism>Exercise 1>Q 74
If the angular momentum of an electron is J→ then the magnitude of the magnetic moment will be