Problem 26.06 A piece of wool is used to charge two plastic spheres. When the sp

Question

Problem 26.06

A piece of wool is used to charge two plastic spheres. When the spheres are held 300mm apart, they repel each other with 9.00N of force.

Part A

If the wool ends up with a surplus positive charge of 25.5?C , what is the charge on each of the two spheres?

Answer = q1 , q2 = ________ , _________ ?C

(Show work please)

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Problem 26.10

Two parallel-plate capacitors have the same plate area. Capacitor 1 has a plate separation half that of capacitor 2, and the quantity of charge you place on capacitor 1 is six times the quantity you place on capacitor 2.

Part A

How do the potential differences across each of the two capacitors compare to each other?

Answer = V1/V2 =

(Show work please)

Explanation / Answer

since spheres repel each other,it means both of them has +ve charge

q1+q2=25.5*10-6

q1=25.5*10-6-q2

9=9*109*(25.5*10-6-q2)q2/0.32

0.32/109=25.5*10-6q2-q22

(0.32/109)-25.5*10-6q2+q22=0

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