The plates on a capacitor have a radius of 1.5 mm and are separated by a distance of 0.43 mm. The space between the plates is filled with a dielectric that has a dielectric constant of 3.8.

What is the capacitance of this capacitor?

1) 5.5 * 10-13 F

2) 1.4 * 10-13 F

3) 5.5 * 10-10 F

4) 1.4 * 10-10 F

Question

Kallie Bailey

Physics

21 June, 13:33

The plates on a capacitor have a radius of 1.5 mm and are separated by a distance of 0.43 mm. The space between the plates is filled with a dielectric that has a dielectric constant of 3.8.

What is the capacitance of this capacitor?

1) 5.5 * 10-13 F

2) 1.4 * 10-13 F

3) 5.5 * 10-10 F

4) 1.4 * 10-10 F

+3

Answers (1)

Know the Answer?

Nola Keller · Answer 1

So, C = kE°A/d

putting the values,

C

= 3.8 * 8.85*10^ (-12) * 3.14*1.5*1.5 * 10^ (-6) / 0.43 * 10^ (-3)

so, 1.02 * 10^ (-13)

so the most appropriate answer is 2 ... that is

1.4 * 10^ (-13) ... answer!

The plates on a capacitor have a radius of 1.5 mm and are separated by a distance of 0.43 mm. The space between the plates is filled with a dielectric that has a dielectric constant of 3.8.What is the capacitance of this capacitor?1) 5.5 * 10-13 F2) 1.4 * 10-13 F3) 5.5 * 10-10 F4) 1.4 * 10-10 F