Two circular, similar, coaxial loops carry equal currents in the same direction. If the loops are brought nearer, what will happen?

 Answer: Current will decrease in each loop

Explanation

The flux between the two loops rises as they are brought closer. According to Lenz’s law, a current will be generated that opposes the flux change. As a result, the current in the two loops will drop to counteract the rise in flux, and the flux will decrease.