Neco Model Questions Vol1 2018 Physics Question 12

Practice objective / multiple choice question 12 from the 2018 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2018 Physics Objective / Multiple Choice Hard Difficulty
Question 12 NECO_MODEL_QUESTIONS_VOL1 • 2018 • PHYSICS • objective

Two point charges are placed on a vertical line. Charge \(q_{1}=+6\,\mu\text{C}\) is at the origin \(O\), and charge \(q_{2}=-3\,\mu\text{C}\) is at point \(P\) which is \(0.12\,\text{m}\) above \(O\). (a) Find the distance \(x\) from \(O\) along \(OP\) where the net electric field is zero. (b) Calculate the electric potential at that point relative to infinity.

Answer Options

A. x = 0.045 m; V = 1.80×10⁵ V
B. x = 0.090 m; V = 2.70×10⁵ V
C. x = 0.060 m; V = 2.10×10⁵ V
Correct Answer D. x = 0.070 m; V = 2.25×10⁵ V
Correct Answer
D
Correct Option:
x = 0.070 m; V = 2.25×10⁵ V

About This Question

This is Neco Model Questions Vol1 2018 Physics Question 12. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Physics examination.

Difficulty level: Hard .

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