A waxed paper capacitor has two parallel plates, each of effective area #800 cm^#2. If the capacitance of the capacitor is #4425 pF#, what is the effective thickness of the paper? The relative permittivity of the paper is 2.5.

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Answer 1 · 2018-01-18T10:56:24

0.386 mm

#sf(C=(kepsilon_0A)/d)#

#:.##sf(d=(kepsilon_0A)/C)#

#sf(d=(2.5xx8.55xxcancel(10^(-12))xx0.08)/(4425xxcancel(10^(-12)))color(white)(x)m)#

#sf(d=3.864xx10^(-4)color(white)(x)m)#

#sf(d=0.386color(white)(x)mm)#