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1. A point charge of 2Q is a distance L from a point charge of -Q. What is the electric field at Point P a distance L abouve the center of the 2 charges. Picture below:

<...........>P

<...........>|

<...........>|

2Q______L______-Q

2. What would the force be on a -Q charge placed at the point a distance L above the center of the charges in the problem above.

3. What is the electric field a distance of 0.5 meters above an infinite plain of charge density 25C/m^2

4. If the center of a flat plate wish a radius of 5cm is placed at an angle of π /3 radians, 1 meter above the infinite plain from the previous problem, then what would be the flux through the plate?

5. What would be the electric field a distance R away from an infinite wire with a charge density of λ