ch27-p037 - 37. (a) We note that the R1 resistors occur in...

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37. (a) We note that the R 1 resistors occur in series pairs, contributing net resistance 2 R 1 in each branch where they appear. Since ε 2 = 3 and R 2 = 2 R 1 , from symmetry we know that the currents through 2 and 3 are the same: i 2 = i 3 = i . Therefore, the current through 1 is i 1 = 2 i . Then from V b – V a = 2 iR 2 = 1 + (2 R 1 )(2 i ) we get () 21 12 4.0V 2.0V 0.33A. 44 1 . 0 2 . 0 i RR −− == = +Ω + Therefore, the current through
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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