Coaxial cable A long coaxial cable carries a uniform (positive) surface charge density o1 = 5 µC/m². On the inner cylinder radius R1 = 0.8 mm, and uniform surface charge density on the outer cylindrical shell (radius R2 = 1.4 mm). The surface charge is negative and of just the right magnitude so that the cable as a whole is neutral. a) Find the surface charge density ơ2 of the cylindrical shell of radius R2. b) Find an expression of electric field at r mm from the center where R1
Coaxial cable A long coaxial cable carries a uniform (positive) surface charge density o1 = 5 µC/m². On the inner cylinder radius R1 = 0.8 mm, and uniform surface charge density on the outer cylindrical shell (radius R2 = 1.4 mm). The surface charge is negative and of just the right magnitude so that the cable as a whole is neutral. a) Find the surface charge density ơ2 of the cylindrical shell of radius R2. b) Find an expression of electric field at r mm from the center where R1
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