Suppose you want to make a parallel-plate capacitor with square plates 1 cm on a

Question

Suppose you want to make a parallel-plate capacitor with square plates 1 cm on a side.

Part A How far apart should the plates be for a capacitance of 5.5 pF ? Express your answer to two significant figures and include the appropriate units. d=

Part B Repeat for 5.5 F . Express your answer to two significant figures and include the appropriate units. d = SubmitMy AnswersGive Up

Part C Is the design (A) practical? Is the design (A) practical? yes no SubmitMy AnswersGive Up

Part D Is the design (B) practical? Is the design (B) practical? yes no SubmitMy AnswersGive Up

Explanation / Answer

Parallel plate cap
C = (A/d) in Farads
is 8.854e-12 F/m
is dielectric constant (vacuum = 1)
A and d are area of plate in m² and separation in m

5.5e-12 = (8.854e-12)(0.0100²) / d
d = (8.854e-12)(0.0100²) / 5.5e-12
solve for d, then convert to cm

d =1.6098*10^-4 m

C = (A/d) in Farads
is 8.854e-12 F/m
is dielectric constant (vacuum = 1)
A and d are area of plate in m² and separation in m

5.5e-6 = (8.854e-12)(0.0100²) / d
d = (8.854e-12)(0.0100²) / 5.5e-6
solve for d, then convert to cm

d =1.6098*10^-10 m

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