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CXC · CSEC · Physics

Resistivity and Factors Affecting Resistance
Practice Questions

20 CXC CSEC Physics questions on Resistivity and Factors Affecting Resistance, each with instant feedback and a full examiner-style mark scheme.

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Question 1 · 1 mark · Difficulty 1/3

A technician at a bauxite processing plant in Jamaica is selecting wire for an electrical circuit. Which of the following correctly states the relationship between the resistance of a wire and its length?

  1. Resistance is directly proportional to length
  2. Resistance is inversely proportional to length
  3. Resistance is independent of length
  4. Resistance is proportional to the square of length
Show answer & explanation
✓ Answer: AResistance is directly proportional to length
Award 1 mark for stating that resistance is directly proportional to length. B is incorrect because increasing length increases resistance, not decreases it. C is incorrect because length is a factor affecting resistance. D is incorrect because the relationship is linear, not squared.
Question 2 · 1 mark · Difficulty 1/3

The resistance of a uniform conductor is given by R = ρL/A. What does the symbol ρ represent?

  1. Density of the material
  2. Resistivity of the material
  3. Resistance per unit length
  4. Cross-sectional area
Show answer & explanation
✓ Answer: BResistivity of the material
Award 1 mark for identifying ρ as resistivity. A is incorrect because density is mass per unit volume, not an electrical property. C is incorrect because resistivity is not simply resistance per unit length. D is incorrect because cross-sectional area is represented by A.
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CXC CSEC Physics: Resistivity and Factors Affecting Resistance FAQ

How many CXC CSEC Physics questions on Resistivity and Factors Affecting Resistance are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Resistivity and Factors Affecting Resistance for CXC CSEC 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 CXC 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 CXC CSEC 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 Resistivity and Factors Affecting Resistance practice with other Physics topics or even switch to a totally different CXC 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 Resistivity and Factors Affecting Resistance questions aligned to the official CXC CSEC Physics syllabus?
Every question is written against the published CXC CSEC Physics specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CXC 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 CXC.
How is Resistivity and Factors Affecting Resistance typically tested on CXC CSEC Physics papers?
Resistivity and Factors Affecting Resistance appears across multiple question types on real CXC CSEC 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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