MIDDLE EAST uNIVERSITY MIDDLE Q4 suppose the parallel plates of each have an are

Question

MIDDLE EAST uNIVERSITY MIDDLE Q4 suppose the parallel plates of each have an area of 2000 cm2 and are 1 apart, we connect the capacitor power supply charge it to a a potential difference Vo capacitor to sheet of insulatin material disconnect supply, we then insert the filling the space between them, we find that the potential difference decreases the charge on each capacitor plate remains constant, the permittivity g dielectric is 1 KV while the of a) 6.54 10-11 C2/N.m2 1.66 10 ii .m do 2.66 10 1 C2N.m2

Explanation / Answer

Charge on the capacitor remains constant

C1V1 = C2V2

Aeo/d * 3 = Ae / d * 1

e = 3eo

= 3*8.85*10^-12

= 2.66*10^-11 C^2 /Nm2

so option d is the correct answer

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