120CHAPTER 18 18.29Applying Kirchhoff’s junction rule at junction agives (1) Using Kirchhoff’s loop rule on the leftmost loop yields 31III=+(2) ( )4.005.0012.0 V0II−+9.00A()(3.00 V−−1354+==or (2) and for the rightmost loop, )324.003.002.0018.0−+ +15.0 A123A, 1.523 A, and 1.846 AI===3.00 V23540.323(V0=or (3) Solving equations (1), (2), and (3) simultaneously gives Therefore, the potential differences across the resistors are )222VI∆=.00 3.05 VΩ=,( )3.00 4.5Ω7 V=( )434.00 7.3Ω8 V=, and( )515.00 1.62 VΩ=18.30The time constant is RCτ=(. Considering units, we find )VoltsCoulombsCoulombs
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This note was uploaded on 12/09/2011 for the course PHYS 2020 taught by Professor Staff during the Fall '10 term at FIU.