+4micoC *---------------* +1microC E=k|q|/r squared. E1+E2=Enet. | | | P | | | +

Question

+4micoC *---------------* +1microC     E=k|q|/r squared. E1+E2=Enet.

                    |                    |

                    |         P        |

                    |                    |

+3microC | ________|   +4microC      

P is directly in the center of a 2 meter by 2 meter square. Do the +4microC point charges cancel each other Out?

Question. 4 point charges are placed at the corners of a square. Each side of the square has a length of 2m. determine the magnitude of the elctric field at the point P, the center of the square.           

Explanation / Answer

Yes the 4 microC charges will cancel eachother

and the 3 and 1 will partially cancel leaving 2 micro C left

so E = 9E9*2.0E-6/(1^2+1^2)=9000

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