Question: When a test charge q0 = 2 nC is placed at the origin, it experiences a force of 8.0 10 4 N in the

When a test charge q0 = 2 nC is placed at the origin, it experiences a force of 8.0 × 10–4 N in the positive y direction.

(a) What is the electric field at the origin?

(b) What would be the force on a charge of –4 nC placed at the origin?

(c) If this force is due to a charge on the y axis at y = 3 cm, what is the value of that charge?

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