Flux \[\phi \] (in weber) in a closed circuit of resistance \[10\,\Omega \] varies with time t (in seconds) according to the equation, \[\phi \,\,\text{=}\,\,\,6{{t}^{2}}-5t+1\]. The magnitude of the induced current in the circuit at \[t\,\,=\,\,0.25\text{ }s\] is-