The magnetic flux \[\phi \] linked with a conducting coil depends on time as \[\phi =4{{t}^{n}}+6\], where n is a positive constant. The induced emf in the coil is e. Then which is wrong?

• A. If \[0<n<1\], \[e\ne 0\] and \[\left. \left| e \right. \right|\]decreases with time
• B. If n=1, e is constant
• C. If n > 1, \[\left| e \right|\]increases with time
• D. If n>l, \[\left| e \right|\] decreases with time