ch25-p064 - 64. (a) Here D is not attached to anything, so...

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64. (a) Here D is not attached to anything, so that the 6 C and 4 C capacitors are in series (equivalent to 2.4 C ). This is then in parallel with the 2 C capacitor, which produces an equivalence of 4.4 C . Finally the 4.4 C is in series with C and we obtain () ( ) eq 4.4 0.82 0.82(50 F) 41 F 4.4 CC µ == = = + where we have used the fact that C = 50 F. (b) Now, B is the point which is not attached to anything, so that the 6
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