Ohm_s Law and Resistance MCQs

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

293 Solved Questions • 220 Mins Practice • Updated for 2026 Competitive Exams
MCQS
2026 Solved Edition · Updated October 2026 · Verified Editorial Standards

Welcome to the verified preparation module for Ohm_s Law and Resistance MCQs 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 Current Electricity (Physics).

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

Direct Definition & Conceptual Scope

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Ohm_s Law and Resistance 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.

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31
According to Ohm's Law, if the resistance of a circuit is reduced to half while the voltage remains constant, what happens to the current?
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32
Which scientist established the fundamental relationship between potential difference (V) and electric current (I) in a conductor?
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33
In a series circuit with a constant voltage source, how does the total current change as additional lamps are connected in series?
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34
Calculate the equivalent resistance of a circuit containing two 10Ω resistors in parallel, which are then connected in series with a third 10Ω resistor.
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35
According to Ohm's Law, how is the potential difference (V) mathematically related to current (I) and resistance (R)?
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36
How does the voltage across individual resistors compare when they are connected in a parallel configuration?
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37
Which material is commonly utilized as a heating element in electrical appliances due to its high resistivity?
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38
How does a very low resistance in an electrical circuit affect the magnitude of the current?
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39
Why are manganin or constantan alloys preferred for manufacturing standard wire-bound resistors?
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40
If the resistance of the conductor is doubled then the electric current is halved. What causes this:
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Pedagogical Syllabus Blueprint

Ohm_s Law and Resistance 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 Ohm_s Law and Resistance MCQs consistently constitute a decisive 10% to 25% weightage of the Current Electricity 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 Ohm_s Law and Resistance 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.