After you close the switch, There will be an induced current in the resistance R, Choose one of the following:
Direction of current ...... magnitude of current
A to B ... decreasing
A to B ... increasing
B to A decreasing
B to A... Increasing
The Attempt at a Solution
When you close the switch a current in the counter clockwise direction flows in the black circuit thus a magnetic field is created inside the solenoid pointing to the right and increasing with time.
Now the red circuit will produce a magnetic field in the other direction, which means the current will be from B to A and decreasing
However, the book disagrees( well old exam) It says that it will flow from A to B and decreasing.