What is orbital magnetic moment? And what is intrinsic magnetic moment?

(N/A) $1$. Orbital Magnetic Moment: An electron revolving in an orbit around the nucleus behaves like a tiny current loop. The magnetic moment associated with this orbital motion is called the orbital magnetic moment. It is given by the formula $\mu_L = -\frac{e}{2m_e} L$,where $e$ is the charge of the electron,$m_e$ is the mass of the electron,and $L$ is the orbital angular momentum.
$2$. Intrinsic Magnetic Moment (Spin Magnetic Moment): Electrons possess an inherent property called spin,which is independent of their orbital motion. This spin gives rise to an intrinsic magnetic moment,often called the spin magnetic moment. It is associated with the intrinsic angular momentum (spin) of the electron and is approximately equal to one Bohr magneton,$\mu_B = \frac{eh}{4\pi m_e}$.