Q. An electron moving around the nucleus with an angular momentum $l$ has a magnetic moment
A) $\frac{e}{m}l$
B) $\frac{e}{2m}l$
C) $\frac{2e}{m}l$
D) $\frac{e}{2\pi m}l$
Explanation
(b) An electron moving around the nucleus has a magnetic moment $\mu$ given by
$\mu = \frac{e}{2m}l$
Where $l$ is the magnitude of the angular momentum of the circulating electron around the nucleus. The smallest value of $\mu$ is called the bohr magneton $\mu_{B}$ and its value is $\mu_{B} = 9.27 \times 10^{- 24}\ JT^{- 1}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.