Three narrow concentric rings of radii 50 mmmm, 70 mmmm, and 90 mmmm are centered about the origin, with the axis of symmetry of each ring oriented along the yy axis. The charge on the inner ring is 1.5 μCμC , that on the middle ring is -1.7 μCμC , and that on the outer ring is 2.0 μCμC . What is the electric field magnitude at (0, 100 mmmm, 0)? What quantity of charge must be placed at (0, -100 mmmm, 0) to make the electric field magnitude zero at the position calculated in the previous part?
Three narrow concentric rings of radii 50 mmmm, 70 mmmm, and 90 mmmm are centered about the origin, with the axis of symmetry of each ring oriented along the yy axis. The charge on the inner ring is 1.5 μCμC , that on the middle ring is -1.7 μCμC , and that on the outer ring is 2.0 μCμC .
What is the electric field magnitude at (0, 100 mmmm, 0)?
What quantity of charge must be placed at (0, -100 mmmm, 0) to make the electric field magnitude zero at the position calculated in the previous part?
Given :
Conversions:
Three concentric circles with radius 50 mm = 0.05 m , 70 mm=0.07 m and 90 mm = 0.09 m with charges 1.5 μC = , -1.7 μC = and 2 μC = respectively.
1) Determine the electric field magnitude at a point (0,0.1, 0)
2) What quantity of charge be placed at (0,-0.1,0) such that the net field is zero at (0,0.1,0)
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