A Van de Graaf generator can generate large static electric charges. Below is a picture of...

Question

Question

Answer 1

Answer #1

a)

Electric field due to sphere is given by

E=KQ/r² =(9*10⁹)(2.5*10^-6)/0.1²

E=2.25*10⁶ N/C

b)

Surface area

A=4pir²=4pi*0.1²=0.125663 m²

Total Number of hairs

N=0.125663*(5*10⁶) =628319

Charge on each hair

q=2.5*10^-6/628319 =3.98*10^-12 C

Answer 2

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