In hydrogen atom, the electron makes \[6.6\times {{10}^{15}}\] revolutions per second around the nucleus in an orbit of radius \[0.5\times {{10}^{-10}}m\]. It is equivalent to a current nearly

• A.                    1 A
• B.                                      1 mA                                                                                                                    
• C.                    \[1\,\mu A\]                 
• D.            \[1.6\times {{10}^{-19}}A\]