Question

Consider a rectangular "loop" of iron wire that is placed in a uniform magnetic field of...

Consider a rectangular "loop" of iron wire that is placed in a uniform magnetic field of magnitude 29T  pointing in the positive z -direction.

At t=  4s , the ring is sitting in a magnetic field pointing in the positive z -direction whose magnitude changes linearly from 15T  at t=  4s  to 26T  at t=  9s . In which direction does the induced magnetic field coming from the induced current in the ring point at t=  6.5s ?

In the positive x -direction.
In the negative x -direction.
In the positive y -direction.
In the negative y -direction.
In the positive z -direction.
In the negative z -direction.
There is no induced magnetic field.

NEED A CORRECT ANSWER! IT IS NOT NEGATIVE X OR NEGATIVE Z!!!

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