Four identical metallic objects carry the followingcharges: +2.6 µC, +5.8 µC, -4

Question

Four identical metallic objects carry the followingcharges: +2.6 µC, +5.8 µC, -4.2 µC,and -6.4 µC. The objects are broughtsimultaneously into contact, so that each touches the others. Thenthey are separated. (1 µC = 1*10-6 C) (a) What is the final charge on each object?
µC

(b) How many electrons (or protons) make up the final charge oneach object?
---Select---protonselectrons (a) What is the final charge on each object?
µC

(b) How many electrons (or protons) make up the final charge oneach object?
---Select---protonselectrons

Explanation / Answer

(a) Whatis the final charge on each object?
µC
charge=[2.6+5.8-4.2-6.4]*10-6/4=-0.55*10-6

(b) How many electrons (or protons) make up the final charge oneach object?
0.55*10-6/1.6*10-19=0.34375*1013   
electrons in excess make up this charge
---Select---protonselectrons

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