Answer
a. Zero
b. Clockwise
c. Counterclockwise
d. Clockwise
Work Step by Step
a. There will be no change in flux. The induced current is zero.
b. At the loop’s location, the decreasing current in the wire causes a decreasing field into the page. To oppose this change in flux, the induced current in the loop produce a field into the page. By the right hand rule, the direction of the induced current is clockwise.
c. At the loop’s location, the decreasing current in the wire causes a decreasing field out of the page. To oppose this change in flux, the induced current in the loop produce a field out of the page. By the right hand rule, the direction of the induced current is counterclockwise.
d. At the loop’s location, the increasing current in the wire causes an increasing field out of the page. To oppose this change in flux, the induced current in the loop produce a field into the page. By the right hand rule, the direction of the induced current is clockwise.
