A metallic rod of length T is tied to a string of length U and made to rotate with angular speed co on a horizontal table with one end of the string fixed. If there is a vertical magnetic field 'B' in the region, the e.m.f. induced across the ends of the rod is

\[\frac{2B\omega {{\ell }^{2}}}{2}\]

\[\frac{3B\omega {{\ell }^{2}}}{2}\]

\[\frac{4B\omega {{\ell }^{2}}}{2}\]

\[\frac{5B\omega {{\ell }^{2}}}{2}\]

A metallic rod of length T is tied to a string of length U and made to

1.	A metallic rod of length T is tied to a string of length U and made to rotate with angular speed co on a horizontal table with one end of the string fixed. If there is a vertical magnetic field 'B' in the region, the e.m.f. induced across the ends of the rod is
A.	\[\frac{2B\omega {{\ell }^{2}}}{2}\]
B.	\[\frac{3B\omega {{\ell }^{2}}}{2}\]
C.	\[\frac{4B\omega {{\ell }^{2}}}{2}\]
D.	\[\frac{5B\omega {{\ell }^{2}}}{2}\]
Answer» E.