Neco Model Questions Vol1 2025 Physics Question 17

Practice objective / multiple choice question 17 from the 2025 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2025 Physics Objective / Multiple Choice Hard Difficulty
Question 17 NECO_MODEL_QUESTIONS_VOL1 • 2025 • PHYSICS • objective

Three point charges are placed on a straight line. Charge \(q_{1}=+2\ \mu\text{C}\) is at the origin, \(q_{2}=-5\ \mu\text{C}\) is at \(x=0.10\ \text{m}\), and \(q_{3}=+3\ \mu\text{C}\) is at \(x=0.20\ \text{m}\). (i) Find the position(s) on the line where the net electric field is zero. (ii) Compute the electric potential at that position due to all three charges. Use \(k=9.0\times10^{9}\ \text{N·m}^{2}\!\!/\text{C}^{2}\).

Answer Options

Correct Answer A. x = 0.157 m, V = -4.7×10^4 V
B. x = 0.157 m, V = -5.0\times10^4 V
C. x = 0.200 m, V = -5.2\times10^4 V
D. x = 0.125 m, V = -3.9\times10^4 V
Correct Answer
A
Correct Option:
x = 0.157 m, V = -4.7×10^4 V

About This Question

This is Neco Model Questions Vol1 2025 Physics Question 17. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Physics examination.

Difficulty level: Hard .

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