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HomeCXC CSEC Integrated ScienceSeries and Parallel Circuits and Electrical Power
CXC · CSEC · Integrated Science

Series and Parallel Circuits and Electrical Power
Practice Questions

20 CXC CSEC Integrated Science questions on Series and Parallel Circuits and Electrical Power, 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 Series and Parallel Circuits and Electrical Power.

Try 2 sample questions on Series and Parallel Circuits and Electrical Power

Question 1 · 1 mark · Difficulty 1/3

Which of the following correctly describes what happens when one bulb in a series circuit fails?

  1. All bulbs go out
  2. Only the failed bulb goes out
  3. The remaining bulbs become brighter
  4. The current increases through the circuit
Show answer & explanation
✓ Answer: AAll bulbs go out
Award 1 mark for recognising that in a series circuit there is only one path for current, so a break stops all current flow. B is incorrect — this describes parallel circuit behaviour. C is incorrect — no current flows so no bulbs can light. D is incorrect — current becomes zero, not increased.
Question 2 · 1 mark · Difficulty 2/3

A student in Kingston is setting up Christmas lights for a community event. She connects five identical bulbs in series to a 120 V power supply. What is the potential difference across each bulb?

  1. 24 V
  2. 120 V
  3. 600 V
  4. 0.24 V
Show answer & explanation
✓ Answer: A24 V
Award 1 mark for correctly dividing total voltage by number of bulbs (120 V ÷ 5 = 24 V). B is incorrect — 120 V is the total supply voltage, not the voltage across each bulb. C is incorrect — this would be the result of multiplying rather than dividing. D is incorrect — this confuses the calculation with current division.
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20 questions · 25 min · free

CXC CSEC Integrated Science: Series and Parallel Circuits and Electrical Power FAQ

How many CXC CSEC Integrated Science questions on Series and Parallel Circuits and Electrical Power are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Series and Parallel Circuits and Electrical Power for CXC CSEC Integrated Science, 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 Integrated Science?
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 Series and Parallel Circuits and Electrical Power practice with other Integrated Science 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 Series and Parallel Circuits and Electrical Power questions aligned to the official CXC CSEC Integrated Science syllabus?
Every question is written against the published CXC CSEC Integrated Science 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 Series and Parallel Circuits and Electrical Power typically tested on CXC CSEC Integrated Science papers?
Series and Parallel Circuits and Electrical Power appears across multiple question types on real CXC CSEC Integrated Science 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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