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Capacitor 3 in Fig. 25-40a is a variable...

Capacitor 3 in Fig. 25-40a is a variable capacitor (its capacitance `C_3` can be varied) Figure 25-40b gives the electric potential `V_1` across capacitor 1 versus `C_3` The horizontal scale is set by `C_3s=12.0 mu F` Electric potential `V_1` approaches as asymptote of 8.0 V as `C_3 to infty` What are (a) the electric potential V across the battery , (b) `C_1` and (c) `C_2`?

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`a) 8.0V b) 4.5 mu F c) 1.5 mu F`
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RESNICK AND HALLIDAY-CAPACITANCE-PROBLEMS
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