Which statement about electromagnetic induction is correct?
A conductor moving parallel to magnetic field lines induces an electromotive force (e.m.f.) in the conductor.
The direction of the induced electromotive force (e.m.f.) opposes the change which produces it.
The induced current is in a direction parallel to the direction of motion producing it.
The induced electromotive force (e.m.f.) decreases when the speed of the conductor moving across the field lines increases.
