Chapter 32 Maxwell’s equations; Magnetism in matter

1. Chapter 32 Maxwell’s equations; Magnetism in matter In this chapter we will discuss the following topics: -Gauss’ law for magnetism -The missing term from Ampere’s law added by Maxwell -The magnetic field of the earth -Orbital and spin magnetic moment of the electron -Diamagnetic materials -Paramagnetic materials -Ferromagnetic materials (32 – 1)

2. The magnetic flux through each of five faces of a die (singular of ''dice'') is given by ΦB = ±N Wb, where N (= 1 to 5) is the number of spots on the face. The flux is positive (outward) for N even and negative (inward) for N odd. What is the flux (in Wb) through the sixth face of the die? A.1 B.2 C.3 D.4 E.5

3. Fig.a Fig.b (32 – 2)

4. ΔAi (32 – 3)

5. (32 – 4)

6. (32 – 5)

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9. (32 – 8)

10. B O R r (32 – 9)

11. (32 – 10)

12. (32 – 11)

13. Geographic North N Compass needle S Compass needle S Fig.a : Top view horizontal N Fig.b : Side view (32 – 12)

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18. e C . . C e . (32 – 17)

19. e C . . C e . (32 – 18)

20. (32 – 18)

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