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CIE · IGCSE · Physics

Resistance and resistors
Practice Questions

20 CIE IGCSE Physics questions on Resistance and resistors, each with instant feedback and a full examiner-style mark scheme.

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✨ Revision guide includes key terms, worked examples and exam technique for Resistance and resistors.

Try 2 sample questions on Resistance and resistors

Question 1 · 1 mark · Difficulty 1/3

What is the definition of resistance?

  1. the ratio of current to potential difference
  2. the ratio of potential difference to current
  3. the product of current and potential difference
  4. the difference between potential difference and current
Show answer & explanation
✓ Answer: Bthe ratio of potential difference to current
Award 1 mark for identifying resistance as the ratio of potential difference to current (R = V/I). A is incorrect — this describes conductance, not resistance. C is incorrect — this gives power (P = IV). D is incorrect — subtracting these quantities is meaningless as they have different units.
Question 2 · 1 mark · Difficulty 2/3

A technician in a research laboratory in Kenya measures the current-potential difference characteristics of a filament lamp. Which statement correctly describes the resistance of the filament lamp as the potential difference increases?

  1. The resistance remains constant because the lamp is an ohmic conductor.
  2. The resistance decreases because the temperature of the filament decreases.
  3. The resistance increases because the temperature of the filament increases.
  4. The resistance decreases because more electrons flow through the filament.
Show answer & explanation
✓ Answer: CThe resistance increases because the temperature of the filament increases.
Award 1 mark for identifying that the filament lamp is a non-ohmic conductor and that increased current causes increased temperature, which increases resistance. A is incorrect — a filament lamp is non-ohmic. B is incorrect — temperature increases, not decreases. D is incorrect — increased electron flow does not cause decreased resistance in metals.
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CIE IGCSE Physics: Resistance and resistors FAQ

How many CIE IGCSE Physics questions on Resistance and resistors are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Resistance and resistors for CIE IGCSE Physics, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CIE paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CIE IGCSE students preparing for Physics?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Resistance and resistors practice with other Physics topics or even switch to a totally different CIE subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Resistance and resistors questions aligned to the official CIE IGCSE Physics syllabus?
Every question is written against the published CIE IGCSE Physics specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CIE paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CIE.
How is Resistance and resistors typically tested on CIE IGCSE Physics papers?
Resistance and resistors appears across multiple question types on real CIE IGCSE Physics papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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