ECE342 Fall 2008 Homework #4 Solution Page 1 of 4 Name _____Solution_____ CM __111___ Due date: Tuesday, October 7ECE342 Homework #4 Solution Fall 2008 (Magnetic fields, Ampere’s law, induced voltage, Faraday’s law, inductance)1 Mark each True/False as either T or F. T____The units of md and ddtElare the same. F____The magnetic field intensity Hin a volume is zero ifsurface0Bds, where the integration is over closed surface of the volume. T____At t >0, the induced voltage V(t) in the figure on the right-hand side is positive. 2 Two infinite lines of current induce a voltage in a single loop of wire in medium with relative permeability of r=6000 as shown below. (0=4x10-7H/m) 2(a) Find1, the magnetic flux produced by current I1. Draw its direction on the figure. 2(b) Find2, the magnetic flux produced by current I2. Draw its direction on the figure. 2(c) Find the actual polarity and value for the induced voltage V(t).
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