okmarks Develop Window Help Jump to. Sapling Learming of two parallel circular d
ID: 2030122 • Letter: O
Question
okmarks Develop Window Help Jump to. Sapling Learming of two parallel circular disks of metal separslerd You have tree paraliel plate capacitors, each by a gap filed with some matenal. Rank 'he capscitors by their capaotances from highest to kowest, based on the provided plane radi (,plate separations (d), and filer materials. Dielectric conistants for each materal n be found nthe uble in nght. tr 1 (Cp r=5.38 x10) m, d·009 *108 m, filed with paper. Capecitor 2 (Cl: r-8.27 *103m, d-34.2 x10 m, filed with porcelain. Capector 3 ( 136 10 m,dn 118 10% m, led with Germaniam (Ge). Highes Air 1.00 Class450 Diamand 550 Percelain 7.00Explanation / Answer
Capacitance is given by:
C = k*eo*A/d
1.
for capacitor 1
k = 3.5
Using given values:
C1 = 3.5*8.85*10^-12*pi*(5.35*10^-3)^2/(50.9*10^-6)
C1 = 0.55*10^-10 F
for capacitance 2,
k = 7
Using given values:
C2 = 7*8.85*10^-12*pi*(8.27*10^-3)^2/(34.2*10^-6)
C2 = 3.89*10^-10 F
for capacitance 3,
k = 16
Using given values:
C3 = 16*8.85*10^-12*pi*(13.6*10^-3)^2/(11.8*10^-6)
C3 = 69.72*10^-10 F
from above values:
C3 > C2 > C1
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