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A charge q₁ -4q is at the origin, and a charge q2 = +q is on the x-axis at x = a, where a > 0.
Find the expression Ex<0 for the total electric field on the x-axis in the region x < 0. Use k to represent Coulomb's constant.
Ex<0 =
Incorrect
Find the expression Eo<x<a for the total electric field on the x-axis in the region 0 < x < a.
E0<x<a =
Ea<x =
Find the expression Ea<x for the total electric field on the x-axis in the region a < x.
kg (3x²+4a²-8ax)
x²(x+a)²
x =
Incorrect
-kg (5x²+4a²-8ax)
x² (a-x)²
Determine all the points x on the x-axis where the electric field is zero. If there is more than one point, enter them as a
comma-separated list.
kg (8ax-3x²-4a²)
x²(x-a)²
-2a

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