ree he oin nli 5. How does the static shock work? Explain. 6. How does the light
ID: 1884129 • Letter: R
Question
ree he oin nli 5. How does the static shock work? Explain. 6. How does the lightening work? Explain. 7. Two point charges, separated by 10.0 cm have charge values of +4.0 and-3.0 C. ct ne respectively. What is the value of the mutual force between them? 8. How many electrons are there in 1 C of negatve charge? 9. Two metal spheres are identical. They are electrically neutral and are touching. An electrically charged rod is then brought near the spheres without touching them. After a while, with the rod held in place, the spheres are separated, and the rod is then remove. What is the net electric charge of the sphere B after the separation? 10. Three point charges lie along the x axis in vacuum. From the left, q1 is a negative charge (q1-4.0 HC.). The charge in the middle, q2 is a positive charge (q2-+3.0uC.). The charge on the right, q3 is a negative charge (q3--7.0uC,). The distance between q1 and q2 is 0.20 m, and the distance between q2 and q3 is 0.15 m. Determine the magnitude and direction of the net electrostatic force on q2.Explanation / Answer
7) F = kq1q2 / r^2
F = 9*10^9*4*10^-6*3*10^-6 / 0.1^2
= 10.8 N
mutual force between them is 10.8 N
8) charge on 1 electron = 1.6*10^-19 C
number of electron in 1C = 1 /1 .6*10^-19 = 6.25*10^18
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