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HomeCXC CSEC PhysicsElectromagnetism: Magnetic Effect of a Current
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Electromagnetism: Magnetic Effect of a Current
Practice Questions

20 CXC CSEC Physics questions on Electromagnetism: Magnetic Effect of a Current, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Electromagnetism: Magnetic Effect of a Current

Question 1 · 1 mark · Difficulty 2/3

At a bauxite processing plant in Guyana, an electromagnet is used to separate iron impurities from crushed bauxite ore. The electromagnet must be switched on and off repeatedly. Why is soft iron used as the core material rather than steel?

  1. Soft iron is cheaper than steel
  2. Soft iron loses its magnetism quickly when the current is switched off
  3. Soft iron is lighter than steel
  4. Soft iron conducts electricity better than steel
Show answer & explanation
✓ Answer: BSoft iron loses its magnetism quickly when the current is switched off
Award 1 mark for identifying that soft iron loses magnetism rapidly. B is correct because soft iron is magnetically soft and does not retain magnetism, allowing rapid switching. A is incorrect as cost is not the physics principle being tested. C is incorrect as weight is not relevant to the electromagnetic property. D is incorrect because the core does not conduct the electricity; the wire does.
Question 2 · 1 mark · Difficulty 2/3

Which of the following devices does NOT make use of the magnetic effect of a current?

  1. Electric bell
  2. Relay switch
  3. Filament lamp
  4. Circuit breaker
Show answer & explanation
✓ Answer: CFilament lamp
Award 1 mark for identifying the filament lamp. C is correct because a filament lamp uses the heating effect of current, not the magnetic effect. A is incorrect because electric bells use electromagnets. B is incorrect because relays use electromagnets to operate switches. D is incorrect because circuit breakers often use electromagnets to trigger mechanical switches.
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CXC CSEC Physics: Electromagnetism: Magnetic Effect of a Current FAQ

How many CXC CSEC Physics questions on Electromagnetism: Magnetic Effect of a Current are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Electromagnetism: Magnetic Effect of a Current 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 Electromagnetism: Magnetic Effect of a Current 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 Electromagnetism: Magnetic Effect of a Current 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 Electromagnetism: Magnetic Effect of a Current typically tested on CXC CSEC Physics papers?
Electromagnetism: Magnetic Effect of a Current 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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