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Unformatted text preview: V ? Problem 4 In free space, a constant volume charge of 1 3 / m C has filled the region m r 1 < of the spherical coordinate system. A uniform line charge of 2 m C / is located along the xaxis in the interval m x m 3 2 < < . Evaluate the force on the line charge. Problem 5 As we know, the vector magnetic potential ) ( r A r r in free space is related to ) ( r J r r according to: ∫ ′ − π ′ ′ µ = V o r r v d r J r A r r r r r r 4 ) ( ) ( Show that ) ( r A r r is solenoidal. Note that for a timeinvariant current density, ) ( r J r r is divergenceless. Problem 6 Prove that ∫ ∫ ∂ × − = × ∇ V V S d F dv F r r r r . M. Shahabadi...
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This note was uploaded on 02/06/2011 for the course ECE 423 taught by Professor Dolatabadi during the Spring '11 term at Amirkabir University of Technology.
 Spring '11
 Dolatabadi
 Electromagnet

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