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Digital Electronics
Practice Questions

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

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Try 2 sample questions on Digital Electronics

Question 1 · 1 mark · Difficulty 1/3

Which of the following correctly describes a logic gate that produces an output of 1 only when ALL its inputs are 1?

  1. An AND gate
  2. A NAND gate
  3. A NOR gate
  4. An OR gate
Show answer & explanation
✓ Answer: AAn AND gate
An AND gate outputs 1 only when all inputs are 1. An OR gate outputs 1 when at least one input is 1. A NAND gate is the inverse of AND, outputting 0 only when all inputs are 1. A NOR gate is the inverse of OR, outputting 1 only when all inputs are 0.
Question 2 · 1 mark · Difficulty 1/3

A NOT gate has an input of 0. What is the output of the NOT gate?

  1. 0, because the input remains unchanged
  2. 1, because both inputs must be 0 for an output of 1
  3. 0, because the gate only activates with a high input
  4. 1, because the NOT gate inverts the input
Show answer & explanation
✓ Answer: D1, because the NOT gate inverts the input
A NOT gate (inverter) always inverts its single input: an input of 0 gives an output of 1, and an input of 1 gives an output of 0. Option A incorrectly suggests the gate passes the signal unchanged. Option C confuses NOT with other gate types. Option D incorrectly references two inputs; a NOT gate has only one input.
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CIE IGCSE Physics: Digital Electronics FAQ

How many CIE IGCSE Physics questions on Digital Electronics are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Digital Electronics 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 Digital Electronics 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 Digital Electronics 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 Digital Electronics typically tested on CIE IGCSE Physics papers?
Digital Electronics 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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