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An electric field is set up between two parallel plates, each of area 2.0 m^2, by putting a 1.0 µC charge on one plate and a -1.0 µC charge on the other. The plates are separated by 4.0 mm. What is the magnitude of the electric field between the plates at a distance of 1.0 mm from the positive plate?Answera) 3.1 × 104 N/Cb) 4.2 × 104 N/Cc) 0 N/Cd) 5.6 × 104 N/Ce) 1.4 × 104 N/C
A particle with charge 8 µC is located on the x-axis at the point 8 cm , and a second particle with charge 7 µC is placed on the x-axis at 4 cm . −10−8 −6 −4 −2 2 4 6 8 10 8 µ C 7 µ C 8 µ C x → (cm) What is the magnitude of the total electrostatic force on a third particle with charge 8 µC placed on the x-axis at 2 cm ? The Coulomb constant is 8.9875 × 109 N · m2 /C 2 . Answer in units of N.
