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**Unformatted text preview: **I , but in opposite directions. The two solenoids have dierent turns of wire per unit length: The inner solenoid, which has radius a 1 , has n 1 turns of wire per unit length, while the outer solenoid, which has radius a 2 , has n 2 turns of wire per unit length. Find the magnetic eld B a) inside the inner solenoid, b) between the two solenoids, c) outside the outer solenoid. 1 Phys 3327 Fall 10 HW 1 Due Wednesday 9/8/10 in lecture Neglect end corrections. Ex 1.4: Lorentz force and Newtons 3rd law Heald & Marion, ex. 1-29. Ex 1.5: dipoles Heald & Marion, ex. 1-10. Ex 1.6: Electret Heald & Marion, ex. 1-15. Suggested Problems for Further Study: Heald & Marion, ex. 1-8: Charged soap bubble (Feel free to ignore the hint) Heald & Marion, ex. 1-20: Magnetic Field of an innite solenoid 2...

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