A -500 nC charge is fixed on the x-axis at x = -3 mm and a +1 pC charge is ancho
ID: 3161517 • Letter: A
Question
A -500 nC charge is fixed on the x-axis at x = -3 mm and a +1 pC charge is anchored on the y-axis at y = -4 mm. Find the net electric field vector at coordinates (-3, -4) mm, and also determine the electric force vector experienced by a +1 C particle placed at those coordinates. Use 9 GN m^2/C^2 for the Coulomb Constant. Find every location along the x-axis where the electric field is zero if a 12 mC charge is fixed at x = -7 km and a -3 mC charge is locked in place at x = -10 km, both also on the x-axis itself.Explanation / Answer
Electric field = vector summation kq/r^2
= 9e9* 500e-6/4e-3^2 j - 9e9* 1000e-6/3e-3^2 i
= 2.8125*10^-8 j - 1*10^12 i N/C
Force = qE = 2.8125*10^-8 j - 1*10^12 i N
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