Biot-Savart Law and Ampere_s Law MCQs

Prepare for Biot-Savart Law and Ampere_s Law MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

19 Solved Questions • 15 Mins Practice • Updated for 2026 Competitive Exams
MCQS
2026 Solved Edition · Updated October 2026 · Verified Editorial Standards

Welcome to the verified preparation module for Magnetism _ Electromagnetism 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 Magnetism _ Electromagnetism (Physics).

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

Direct Definition & Conceptual Scope

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Biot-Savart Law and Ampere_s Law 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

Practice with answers, explanations, and exam-focused revision notes.

19 MCQs Page 1

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Topic Notes: Biot-Savart Law and Ampere_s Law

Quick Revision 3 min read 16 key points
Section 1 of 5

1 1. Foundations of Electromagnetism

4 points
  • Fact Jan 1820
    Oersted’s Discovery (1820): Hans Christian Oersted first observed that an electric current flowing through a wire creates a magnetic field, evidenced by the deflection of a nearby compass needle.
  • Definition
    Magnetic Field Origin: A magnetic field is generated in the space surrounding any conductor carrying an electric current, as moving charges constitute a current that serves as the source of magnetism.
  • Fact
    Right-Hand Grip Rule: If you grasp a current-carrying wire with your right hand such that your thumb points in the direction of the current, your curled fingers indicate the direction of the magnetic field lines.
  • Fact
    Field Line Geometry: Magnetic field lines around a long, straight current-carrying wire are concentric circles centered on the wire, with the plane of the circles perpendicular to the conductor.
Section 1 / 5
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1
How does the intensity of the magnetic field change as one moves closer to a current-carrying conductor?
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2
Evaluate the relationship between the following statements: Statement I: A compass needle deflects near a current-carrying wire. Statement II: A current-carrying wire generates a magnetic field.
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3
Which scientist is credited with discovering that an electric current flowing through a conductor generates a surrounding magnetic field?
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4
The orientation of a magnetic field generated by a conductor is determined by the direction of which physical quantity?
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5
According to the right-hand grip rule, if you grasp a current-carrying wire with your right hand such that your thumb points in the direction of the conventional current, what do your curling fingers indicate?
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6
What is the dimensional formula for magnetic field intensity (H)?
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7
How do two parallel wires carrying electric currents in opposite directions interact with each other?
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8
Who discovered that the force exerted on a current-carrying wire in a magnetic field is perpendicular to both the field direction and the current direction?
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9
Which rule is commonly used to determine the direction of the magnetic field lines generated around a current-carrying conductor?
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10
What physical phenomenon is generated in the space surrounding a conductor carrying an electric current?
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Pedagogical Syllabus Blueprint

Biot-Savart Law and Ampere_s Law MCQs: 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 Biot-Savart Law and Ampere_s Law MCQs consistently constitute a decisive 10% to 25% weightage of the Magnetism _ Electromagnetism 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 Biot-Savart Law and Ampere_s Law MCQs, 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.