Answer
The correct answer is: (e) 1 and 2
Work Step by Step
By Lenz's Law, the induced emf produces a current which opposes the changing magnetic flux.
Loop 1:
The magnetic flux out of the page is decreasing, thus, the induced current will produce a magnetic field out of the page. By the right hand rule, this current flows counterclockwise. By the right hand rule, this produces a net magnetic force directed to the right.
Loop 2:
The magnetic flux out of the page is increasing, thus, the induced current will produce a magnetic field into of the page. By the right hand rule, this current flows clockwise. By the right hand rule, this produces a net magnetic force directed to the right.
Loop 3:
The magnetic flux out of the page is increasing, thus, the induced current will produce a magnetic field into of the page. By the right hand rule, this current flows clockwise. By the right hand rule, this produces a net magnetic force directed to the left.
Loop 4:
The magnetic flux out of the page is decreasing, thus, the induced current will produce a magnetic field out of the page. By the right hand rule, this current flows counterclockwise. By the right hand rule, this produces a net magnetic force directed to the left.
The correct answer is: (e) 1 and 2
