Please help solve these two problems. The correct answers are D and A respective

Question

Please help solve these two problems. The correct answers are D and A respectively

Charge q_1 (= 2.5 muC) is at a distance d = 4.0 m from a second charge q_2 (= -6.3 muC). Find a point, A, on the horizontal line between the two charges, where the net electric potential is zero. Enter your answer as measured from q_1. A 2.00 m B 0.92 m C 1.34 m D 1.14 m E 0.81 m 13. The equipotential lines shown in the figure below are created by a set of source charges that are not shown. A negative charge, q, is then placed in the potential field where shown and released. What direction does the charge start to accelerate, or does it remain motionless?

Explanation / Answer

here Vnet = 0

let this distance is x from q1 and (4-x) from q2

so V1 = V2

Kq1/x = Kq2/(4-x)

2.5/x = 6.3/(4-x)

x = 1.134 m option D

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since for negative charge , field lines are inward directio

filded must be directed alon A

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