Electric Field
Activphysic:
- For #1 both molecules's charges are positive means each molecules has force points away from the center , so closer means bigger repel force.
- For # 2, first solve the force by F = kq1q2 / r^2(distance between), and solve electric field by E = F12 / q2^2
- For # 3, it basically talk about what electric field looks like on positive charge and negative charge.
- For #4, uniform means the charge between one plates with 10 positive charges and one plates with 10 negative charges charges are always the same.
- For #5, charges in uniform spaces doesn't depend on location because they are all the same.
- For #6, in the uniform space force also stay constant.
Superposition of electric field vector
E-Fie;d Vectors from a Uniformly Charged Rod
Since the distance is different on each points so we list all the charges by Excel.
We determine the total electric field for x is 5.965*10^5 N/C.
Total electric field for y is 1.273*10^6 N/C.
Games:
It is impossible for only one charges
A little bit harder, but same trick as first one.
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Just the Practice of Electric field vector
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