Question

Two identical coaxial circular loops carry a current $i$ each circulating in the same direction. If the loops approach each other

• A. the current in each loop will decrease
• B. the current in each loop will increase
• C. the current in each loop will remain the same
• D. the current in one loop will increase and in the other loop will decrease

Answer 1

The correct option is A the current in each loop will decrease

As both have current in same direction so field produced by each loop will be in same direction.

When they will move towards each other then the $flux$ in each loop will increase so the $induced$ current will be such that it can $\text{oppose the increase in the flux so it will be in opposite direction of original current thus resulting in decrease of net current.}$

Option A is correct.