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Unformatted text preview: b) series impedance matching at the source. 5. (2 points) Explain why we can use voltages and currents instead of electric ﬁelds and magnetic ﬁelds when we analyze transmission lines. 1 6. (15 points) In the system shown below, the switch is kept in position A for a long time. At t = 0, the switch is moved to position B . Develop a reﬂection diagram for the charging process resulting from the switch changing position, up to t = 4 T . In addition, plot the load voltage V L ( t ) and the input current I in ( t ) for 0 < t < 4 T . 2...
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- Summer '08
- Impedance, Transmission line, Impedance matching, Characteristic impedance