Don't need any!
The Attempt at a Solution
I know that the first one is A. Loop 1 induces a magnetic field into the Loop2, then using right hand rule you get that it has to be clockwise.
For b-d I'm not sure.
I think B is continuous, why wouldn't it be? There's no resistor or anything to stop the current and if they don't move away from eachother it wouldn't decrease...
C should be to left, ya? They repel...
D should be to right... again because they will repel eachother because in between they'll both have a magnetic field pointing out of page. Similar mag field will repel...
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