Which of the following are true about eddy currents? (Select all that may apply)

When applying a sinusoidal magnetic field intensity to a ferromagnetic material, under steady state conditions, the flux density in the material will never reach zero because of the residual flux density.

What formula is used to determine the force on a conductor (of length l) placed in a magnetic field?

The integration of the total flux density passing through a closed loop will yield the intensity of the magnetic field.

Match the parameter with the appropriate definitions:

A 1034 turn coil is wrapped around a magnetic core with an air gap as shown in the diagram below. The dimensions l and x are 94 cm and 4 cm respectively (the thickness of the entire core is uniform). The field intensity through the center of the core material is 602 At/m and its relative permeability is 1250. Calculate the length of the air gap if the current through the coil is 5.42 A. (Ignore the effects of fringing)

In which of the following scenarios described below will we expect to get a sustained non-zero reading on the voltmeter? (Select all that may apply)

What is term used to describe the value of the magnetic field intensity required to remove all of the flux density from a ferromagnetic material?

Which option best describes the phenomenon known as Ferromagnetism