Neco Model Questions Vol1 2023 Physics Question 42

Practice objective / multiple choice question 42 from the 2023 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2023 Physics Objective / Multiple Choice Hard Difficulty
Question 42 NECO_MODEL_QUESTIONS_VOL1 • 2023 • PHYSICS • objective

Two point charges, \(q_1=+8\,\mu\text{C}\) and \(q_2=-2\,\mu\text{C}\), are placed 0.30\,m apart on a straight line. Determine the position, measured from \(q_1\) along the line, where the net electric field is zero. Then calculate the electric potential at that point due to both charges, taking the potential at infinity as zero. Express the position in metres (to two decimal places) and the potential in volts (in scientific notation).

Answer Options

Correct Answer A. position = 0.20 m, potential = 1.8e5 V
B. position = 0.10 m, potential = 2.4e5 V
C. position = 0.25 m, potential = 1.2e5 V
D. position = 0.15 m, potential = 2.0e5 V
Correct Answer
A
Correct Option:
position = 0.20 m, potential = 1.8e5 V

About This Question

This is Neco Model Questions Vol1 2023 Physics Question 42. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Physics examination.

Difficulty level: Hard .

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