Help in physics plzz?

Question

1st my scientific english isnt good at all , so please try to understand what i mean , When there are 2 coils next to each other one connected to a battery and called primary coil and the other connected to a gelvanometter only and called a secondary coil . when there is a current is in the primary coil is generated the gelvanometter in the secondary coil shows that there is current is genrated in it .

So when we move the primary coil near the seconadry coil the current is the seconadry coil moves in the opposite way the current moves in the primary coil << in primary it moves from right to left , in secondary will move from left to right >> thats happens according to lenz law . if its a fact , how can this happen and the magenitic feilds will be in opposite ways if this happened so the 2 coils will attract and at the same time they are not supposed to be attracted .. can any one explains , how this happens . thanks

Answer 1

You are inducing current in one coils while exciting the other co ill.
All nice and well BUT you need a variable field to induce a current in the coil. Battery provide time invariant field (DC) so induction will not work unless you're interested in the transient response. Now all that aside let's do the rest.

The magnetic field (B) is generated [the thumb of the right hand] current i(primary) is the curling of the fingers. The current induced by the field B [ the thumb of the left hand] generates current i(secondary) in the direction of curling finger of the left hand.
So yes the current are 'mirror' reflection of each other.

If you allow the current to flow in the secondary coil, by hooking it the battery, then depending on which way the B points they will attract or repeal.