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Question: A long coaxial cable consists of two cylindrical shells. The inner cylinder with radius a carries a uniform line charge +λ (charge per unit length along the z direction), and the outer cylinder has a radius b and carries a line charge -λ. The charges move with velocity ¯v = vˆz along the surfaces of cylinders.
(a) Calculate the magnetic field: between the cylinders (a<s<b), inside (s<a) and outside (s<b)
(b) calculate the magnetic energy stored in the cable for a section of length /.
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Suppose a cube of aluminum which is 1.00 cm on a side accumulates a net charge of +2.30 pC. By what percentage has the mass of the cube decreased
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two stones are thrown simultaneously one straight upward from the base of a cliff and the other straight downward from
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The light goes through a second polarizer and exits with an intensity of 225 W/m squared, What is the orientation angle of the second polarizer
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