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2 February, 14:32

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

+2
Answers (1)
  1. 2 February, 16:19
    0
    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!
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