The electric field lines never cress. Field lines start negative charge and end

Question

The electric field lines never cress. Field lines start negative charge and end on positive charge. The stronger field has clearer filed is tangent to the field line at a paint. The number of lines entering or leaving a charge is proportional to the magnitude of the charge. A place of plastic a net charge of +300 mu C. How many more protons than elected does this piece of plastic have? 0 1.875 times 10^24 2.875 times 10^23 1.875 times 10^23 2.50 times 10^24 Two point charges of +3.0 mu C and -9.00 mu C are separated by a distance of 10.0 cm. A +7.00 mu C charge is placed midway between these two charges. What is the electric force acting on this charge because of the other two charges? 7.56 N directed towards the negative charge 75.6 N directed towards the negative charge 7560 N directed towards the negative charge 75 N directed towards the positive charge 75.6 N directed towards the positive charge a proton and an electron are held apart a distance of lm and then released. A

Explanation / Answer

5.

charge of electrons

e=1.6*10-19 C

Number of protons

N=(3*10-6)/(1.6*10-19)

N=1.875*1013

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