Question

to study the magnetic field due to electric current flowing through the coil diagram​

Answer 1

Well direction is always something relative. That is, it varies with the observer and his/her point of view. So it's better to know why is the direction so, the way it is in each of the cases.

A clockwise current will produce a magnetic S pole while anticlockwise would produce a magnetic N pole.

So suppose you keep a circular loop on a horizontal surface n look perpendicular down to it, then, if u see a clockwise current u must know its the same as a magnetic S pole and hence field lines will terminate onto it, i.e. the magnetic field would be directed into the loop perpendicular to the horizontal surface.Again if u see an anticlockwise current in the loop after making the same observation, then you must know its a magnetic N pole and hence files lines will begin from it and so the field will be directed perpendicular to the loop and out of the plane.

Remember the Right hand Thumb rule

Answer 2

electromagnetic induction

Faraday's law

I think it is helpful for you