Coulomb’s Law MCQs - Electrostatics

Prepare for Coulomb’s Law MCQs - Electrostatics with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

17 Solved Questions • 13 Mins Practice • Updated for 2026 Competitive Exams
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2026 Solved Edition · Updated October 2026 · Verified Editorial Standards

Welcome to the verified preparation module for Coulomb’s Law MCQs - Electrostatics on McqsMind. This comprehensive set offers solved multiple-choice questions with answers, detailed explanations, and authentic past-paper style questions aligned with the latest syllabus of Electrostatics (Physics).

100% Verified Answer Keys CSS, PMS, FPSC, PPSC, NTS Ready 2026/2027 Syllabus Guidelines

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Coulomb’s Law - Electrostatics constitutes an essential examination topic within Physics, evaluating theoretical principles, historical context, and practical problem-solving applications. On MCQsMind, candidates practice verified past-paper solutions, conceptual breakdowns, and syllabus-aligned questions tailored for CSS, PMS, and competitive screening examinations.

Solved Questions

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Topic Notes: Coulomb’s Law

Quick Revision 3 min read 13 key points
Section 1 of 4

1 1. Fundamental Definition

4 points
  • Definition
    Coulomb's Law: States that the electrostatic force between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them.
  • Theory
    Mathematical Form: F = k(q1q2)/r^2, where F is force, q1 and q2 are point charges, r is the separation distance, and k is the Coulomb constant.
  • Definition
    Point Charges: The law is strictly applicable only to stationary point charges, which are charged objects whose dimensions are negligible compared to the separation distance between them.
  • Comparison
    Coulomb vs. Newton: Coulomb’s law is mathematically analogous to Newton’s Law of Universal Gravitation, as both follow the inverse-square law, though electrostatic force can be attractive or repulsive while gravity is only attractive.
Section 1 / 4
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1
In the expression F = k(q1q2)/r^2, what does the variable 'r' represent?
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2
Which of the following is true regarding the electrostatic force between two charges in a vacuum?
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3
Coulomb's Law is a direct consequence of which fundamental property of electric fields?
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4
What happens to the force between two point charges if the medium is replaced by a conductor?
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5
Which principle allows for the calculation of the net force on a charge due to multiple surrounding charges?
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6
If both charges are doubled and the distance between them is also doubled, the electrostatic force will:
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7
What is the direction of the electrostatic force between two identical positive charges?
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8
Coulomb's Law is analogous to which law in classical mechanics?
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9
If the medium between two charges is changed from vacuum to a dielectric with a dielectric constant 'K', the force between them will:
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10
What is the approximate value of the Coulomb constant 'k' in vacuum?
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Pedagogical Syllabus Blueprint

Coulomb’s Law MCQs - Electrostatics: Preparation Strategy & Exam Blueprint

Examination Weightage & Commission Distribution

In Pakistan's premier competitive examinations—including the Federal Public Service Commission (FPSC General Recruitment & CSS MPT), Punjab Public Service Commission (PPSC Lecturer, Tehsildar & PMS Screening), KPPSC, SPSC, and BPSC—questions derived from Coulomb’s Law MCQs - Electrostatics consistently constitute a decisive 10% to 25% weightage of the Electrostatics paper. Testing agencies frequently evaluate both foundational factual recall and deeper analytical comprehension, requiring aspirants to master key dates, statutory articles, constitutional clauses, and thematic definitions.

High-Yield Conceptual Pillars & Distractor Analysis

Historical trend analysis across past five-year examination cycles demonstrates that examiner traps frequently involve closely matched numerical alternatives, chronologically contiguous treaties, and semantic subtleties in statutory phraseology. When preparing Coulomb’s Law MCQs - Electrostatics, candidates must deliberately review the underlying rationale provided for every question rather than merely memorizing raw answer options. Understanding why incorrect distractors fail is the most reliable predictor of achieving top percentiles in computerized and optical mark recognition (OMR) screening tests.

Negative Marking Mitigation & Time Management Protocol

For examinations enforcing negative marking penalties (such as PPSC's 0.25-mark deduction per erroneous response or NTS gatekeeper quotas), an aggressive elimination technique must be deployed. Candidates should systematically rule out improbable options first to elevate probability thresholds from 25% to 50% or 100%. Allocating an average of 45 to 60 seconds per item during mock trials builds the psychological stamina and cognitive precision required to complete 100-question papers within official 90-minute time limits.

Recommended Reference Sources & Statutory Reading

To achieve definitive conceptual mastery in Physics, candidates are advised to cross-reference our solved explanations with primary gazettes, statutory texts, and canonical academic textbooks. Verifying controversial questions against authentic official repositories guarantees that prospective civil servants and professional candidates present incontestable answers during both optical paper evaluations and viva voce departmental interviews.