The units of magnetic moment are

Options

A. Newton - ohm
B. Torrs
C. Bohr magneton
D. Pascals

Answer

To determine the units of magnetic moment, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Magnetic Moment**:
- Magnetic moment is a vector quantity that represents the strength and direction of a magnetic source. It is denoted by the symbol \( \mu \).

2. **Formula for Magnetic Moment**:
- The magnetic moment can be calculated using the formula:
\[ \mu = \sqrt{n(n + 2)} \]
where \( n \) is the number of unpaired electrons in an atom.

3. **Identifying Units**:
- The units of magnetic moment are typically expressed in terms of the Bohr magneton (denoted as \( \text{Bm} \)).
- The Bohr magneton is a physical constant that is used to describe the magnetic moment of an electron due to its angular momentum.

4. **Value of Bohr Magneton**:
- The value of 1 Bohr magneton is given by:
\[ 1 \, \text{Bm} = 9.27 \times 10^{-24} \, \text{J/T} \]
where J is joules and T is tesla.

5. **Conclusion**:
- Therefore, the unit of magnetic moment is the Bohr magneton (Bm).

### Final Answer:
The units of magnetic moment are Bohr magneton (Bm).

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