Faraday’s law in integral form is
(The symbols have their usual meaning)
Answer & explanation
Correct answer: option 2
According to Faraday Law
Induced emf $\varepsilon=-\frac{d \phi}{dt}$
And $\varepsilon=\int \vec{E} . \vec {dl}$
$\Rightarrow \int E . dl=-\frac{d \phi}{dt}$