Question

Several experimental capacitors were fabricated with different plate areas​ (A), but with the same​ inter-plate distance

​(d equals 1.2 mm

​)

and the same insulating​ material, and thus the same relative static permittivity

​(epsilon Subscript r

​).

The capacitance of each device was measured and plotted versus the plate area. A mathematical model to describe the data was then obtained.

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​(a) What are the units of the slope

​(20.33

​)?

The units of the slope are

StartFraction nF Over m squared EndFraction

.

​(b) If the capacitance is

2.3

nanofarads​ [nF], what is the area​ (A) of the​ plates?

The area of the plates is

nothing

m squared

.

​(Round your answer to three decimal​ places.)

Answer 1