A capacitor is constructed out of two foil wrappers that have a length of 8.7 cm and width of 2.1 cm, and the plates (wrappers) are spaced 7 μm apart. If the capacitor is filled with a dielectric that has a constant of 120, what is the capacitance? (in F) a. 6.69×10-8 F  b. 3.61×10-6 F c.  2.31×10-9 F  d. 1.92×10-11 F e.  2.77×10-7 F

Physics for Scientists and Engineers: Foundations and Connections
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Chapter27: Capacitors And Batteries
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A capacitor is constructed out of two foil wrappers that have a length of 8.7 cm and width of 2.1 cm, and the plates (wrappers) are spaced 7 μm apart. If the capacitor is filled with a dielectric that has a constant of 120, what is the capacitance? (in F)

a. 6.69×10-8 F  b. 3.61×10-6 F c.  2.31×10-9 F  d. 1.92×10-11 F e.  2.77×10-7 F
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