Question

A loop rests in the plane of a page of textbook while a magnetic field is directed into the page. A clockwise current is induced

Check all that apply.
when the size of the loop decreases.
when the magnetic field is tilted so it is no longer perpendicular to the page.
when the loop is moved sideways across the page.
when the magnetic field gets stronger.

Answer 1

Answer:

when the size of the loop decreases.

when the magnetic field is tilted so it is no longer perpendicular to the page.  

when the magnetic field gets stronger.

Explanation:

In order for an induced current to occur in a conductor, the magnetic flux that passes through it must vary, this flux is given by:

$\Phi_B=BScos\theta$

Here B is the magnitude of the magnetic field, S is the area of the loop and $\theta$ is the angle between the magnetic field and the surface vector. Thus, in order to have a change of the magnetic flux over time, B, S and/or $\theta$, have to change over time.