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.

31 Solved Questions • 24 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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21
71. A primary cell has e.m.f. 2 volt. When short circuited it gives a current of 4 amp. Its internal resistance in ohms will be
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22
The resistance offered by one cubic metre (1 m^3) of a substance is known as
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23
15. A triode has a mutual conductance of 2 × 10^-3 mho and an amplification factor of 50. The anode is connected through a resistance of 25 × 10^3 ohm to a 250 volt supply. The voltage gain of this amplifier is
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24
A current of 5A is passed through a conductor of 10 ohms resistance for a period of 10 seconds. The heat produced in joules will be:
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25
Capacitive reactance is measured in
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26
11. With a change of load resistance of a triode, used as an amplifier, from 50 kilo ohm to 100 kilo ohm, its voltage amplification changes from 25 to 30. Plate resistance of the triode is
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27
In a common base transistor amplifier, the input resistance is 100 Ω and output resistance is 5000 Ω. If α = 0.98, the voltage gain is
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28
A resistance of nominal value of 2 ohm is found to have an actual resistance of 2.1 ohm. What length of wire of resistance 21 ohm per metre must be connected in parallel with the coil in order that the combined resistance shall be exactly 2 ohm?
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29
135. When a wire is stretched and its radius becomes 1/2, then its resistance will be
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30
A forward biased p-n junction practically offers:
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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.