**Mettalic** disc of radius **R** is rotating about its axis with constant angular velocity $\omega$ Then Find The Potential difference develop between the centre and Circumference of disc.

DETAILS AND ASSUMPTIONS:

${ { m }_{ e }=9.1\times { 10 }^{ -31 }kg\\ { q }_{ e }=1.6\times { 10 }^{ -19 }c\\ R=4m\\ \omega =\sqrt { 1.76 } rad/s\\ }$.

NOTE: **MULTIPLY YOUR ANSWER BY** ${ 10 }^{ 11 }$.