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Assignment3

# Assignment3 - EC 501 Wave Propagation and Radiation...

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EC 501 Wave Propagation and Radiation Assignment Two: covers reading assignments, resistance, currents, current density, magnetic flux density, magnetic force 1. A dc voltage of 6V applied to the ends of 1km of a conducting wire of 0.5mm radius results in a current of 1/6A. Find a) The conductivity of the wire b) The electric field intensity in the wire c) The power dissipated in the wire d) The electron drift velocity assuming electron mobility in the wire to be 1.4x 10 -3 m 2 /(Vs) 2. What are the boundary conditions of the normal and tangential components of the steady current at the interface of two media with different conductivities? 3. In a given region of space, the vector magnetic potential is given by A = â x 5cos y + â z (2+sin x) Wb/m a) Determine B b) Calculate the magnetic flux passing through a square loop with 0.25m long edges if the loop is in the x-y plane, its centre is at the origin and its edges are parallel to the x and y-axes.

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