A permanent magnet is a piece of magnetic material that has been magnetized and can hold its magnetic strength for a reasonable length of time. Select one: TRUE FALSE

2. What were early natural magnets known as?

In this Exercise 6 we will explore laws critical to the study of electromagnetism. We will be using Simulation 3 (below) to explore how a moving magnet produces current in a nearby coil of wire.   a. Magnetic field strength decreases as you get farther from the poles of the magnet. Does the flux through the face of the coil change as you move the magnet? Explain your answer. b. Why does the meter needle deflect? Is the deflection in accordance with Lenz’s Law? Justify your answer in terms of Lenz’s law and your above answers.

3.2 is the amount of magnetomotive force distributed over the length of a magnet. Oa. Field flux Ob. Magnetic field intensity Oc. Magnetic flux Od. Polarity