Question

The magnetic flux through a loop:

Answer 1

Answer: C. depends just on the B field going through the loop

Explanation:

If the magnetic field changes, or if the size of the loop changes, or if the orientation of the loop changes, then the flux through the loop can change. A change in flux induces an emf in the loop.

Magnetic flux is what generates the field around a magnetic material. ... The SI unit of magnetic flux is the Weber (Wb) (in derived units: volt-seconds). The CGS unit is the Maxwell. Magnetic flux is sometimes used by electrical engineers designing systems with electromagnets or designing dynamos.