Electron is revolving around the nucleus in a circular orbit with a speed of 107 m/s. If the radius of the orbit is 10⁻¹⁰ m, find the current constituted by the revolving electron in the orbit.

a) 1.6 × 10⁻¹⁸ A
b) 1.6 × 10⁻¹⁹ A
c) 1.6 × 10⁻²⁰ A
d) 1.6 × 10⁻²¹ A