Learning objective

Draw and explain the current-voltage characteristics for a resistor with constant resistance, a filament lamp, and a diode.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

Cambridge IGCSE PhysicsElectricity and magnetismSupplement content

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Understand this objective

Quick explanation

This point belongs to Resistance, especially Resistance outcomes.
You need to be able to draw and explain the current-voltage characteristics for a resistor with constant resistance, a filament lamp, and a diode.
The key ideas to know are Sketch and Explain.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

SketchExplain

Why it matters

This objective helps connect Resistance outcomes to exam-style questions, flashcards, and revision notes for Resistance.

Revision tools

Flashcards10 linked cards

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Practice Questions7 linked questions

Question 1 of 7

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Paper 4Theory (Extended)1 marks

Description

The I-V characteristics of a resistor, filament lamp, and diode are shown in the following descriptions.

a
State the shape of the I-V characteristic for a resistor.
Your answer
Aim for approximately 1 distinct marking point.
[1]

Revision notestopic notes

Open the full topic revision notes when you are ready to review this objective in context.

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