(a) The current i due to a charge q moving in a circle with frequency frev is qfrev · Find the current due to the electron in the first Bohr orbit. (b) The magnetic moment of a current loop is iA, where A is the area of the loop. Find the magnetic moment of the electron in the first Bohr orbit in units Am2. This magnetic moment is called a Bohr magneton.

(a) The current i due to a charge q moving in a circle with frequency frev is qfrev · Find the current due to the electron in the first Bohr orbit. (b) The magnetic moment of a current loop is iA, where A is the area of the loop. Find the magnetic moment of the electron in the first Bohr orbit in units Am2. This magnetic moment is called a Bohr magneton.