# Moving Charges & Magnetism Worksheets

## Worksheet-4.07

### (Magnetic Dipole Moment of Revolving Electron)

#### General Instructions

• This worksheet belongs to the Chapter-

Moving Charges & Magnetism

• This worksheet is based on the concept of-

Magnetic Dipole Moment of Current Carrying Loop

• The worksheet includes subjective questions from NCERT & different exams like-

CBSE, NEET, PSEB, HSEB etc.

### Ques-01:

Calculate the magnetic moment of an electron orbiting in a circular orbit of radius ‘r’ with a speed ‘v’.

### Ques-02:

A particle of charge q and mass m moves in a circular orbit of radius ‘r’ with an angular speed ‘ω’. Calculate its magnetic moment.

### Ques-03:

A particle of charge q and mass m moves in a circular orbit of radius ‘r’ with angular speed ‘ω’. Calculate the ratio of the magnitude of its magnetic moment to that of its angular momentum.

### Ques-04:

The radius of the first orbit of hydrogen atom is 0.5 Å. The electron moves in an orbit with a uniform speed of 2.2 x 106 m/s. Calculate the equivalent magnetic dipole moment.

### Ques-05:

Two particles each of mass m and charge q are attached to the ends of a light rigid rod of length 2R. The rod is rotated at constant angular speed about a perpendicular axis passing through its center. The ratio of the magnitudes of the magnetic moment of the system and its angular momentum about the center of rod is_____.

(IIT 1998)

1. evr/2

2. qωr2/2

3. q/2m

4. 8.8 x 10-24 Am2

5. q/2m

#### MCQs Quiz-

Quiz on Magnetic Dipole Moment of Revolving Electron

Get Notes & other Study Material of the Chapter Moving Charges & Magnetism.