Question

should we consider the negative sign in Faraday's law while solving numericals​

Answer 1

So yes, you can get a negative answer. In Faraday's law, that means you have current going in the "negative" direction (which means the opposite of the direction indicated by the right-hand rule).

Answer 2

yes, you can get a negative answer. In Faraday's law, that means you have current going in the "negative" direction (which means the opposite of the direction indicated by the right-hand rule).