hw1 - I , but in opposite directions. The two solenoids...

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Phys 3327 Fall 10 HW 1 Due Wednesday 9/8/10 in lecture Homework 1 Static Electric and Magnetic Fields Ex 1.1: Capacitor Two large parallel conducting plates a distance d apart are charged with a surface charge density ± ρ s , see the ±gure (left panel). a) What is the magnitude of the electric ±eld between the plates? Ignore edge effects. b) What is the pressure (force per unit area) the two plates exert on each other? c) A sheet of dielectric material of thickness d/ 2 is placed between the plates, see the ±gure (right panel). The dielectric constant of the material is ± . What is the electric ±eld between the plates, inside the dielectric and outside the dielectric? d) What is the potential difference between the two plates in this case? Ex 1.2: Sphere and spherical cavity in medium of uniform polar- ization Ex 1.3: Coaxial solenoids Consider two long coaxial solenoids that each carry a current
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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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This note was uploaded on 12/04/2010 for the course PHYS 3327 at Cornell University (Engineering School).

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hw1 - I , but in opposite directions. The two solenoids...

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