744_Physics ProblemsTechnical Physics

# 744_Physics ProblemsTechnical Physics - 84 Capacitance and...

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84 Capacitance and Dielectrics P26.18 The circuit reduces first according to the rule for capacitors in series, as shown in the figure, then according to the rule for capacitors in parallel, shown below. CC C C eq =+ + F H G I K J == 1 1 2 1 3 11 6 183 . FIG. P26.18 P26.19 CCC p 12 111 s Substitute p 21 =− 11 1 CCCC CC C sp p p = −+ ej . Simplifying, C pp s 1 2 1 0 −+= . C C C C ppp s p s 1 2 2 4 2 1 2 1 4 = ±− We choose arbitrarily the + sign. (This choice can be arbitrary, since with the case of the minus sign, we would get the same two answers with their names interchanged.) C C C C C p s p p s 1 2 2 2 1 2 1 4 1 2 900 1 4 200 600 1 2 1 4 1 2 150 300 = + = =−= = = .. . . . . pF pF pF pF pF pF pF pF bg P26.20 p and s . Substitute p : 1 p p
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## This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

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