Learning objective

Qualitatively describe how the resistance of a metallic wire relates to its length and cross-sectional area.

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

Exam focus

Cambridge IGCSE PhysicsElectricity and magnetismCore content

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Understand this objective

Quick explanation

This point belongs to Resistance, especially Resistance outcomes.
You need to be able to qualitatively describe how the resistance of a metallic wire relates to its length and cross-sectional area.
The key ideas to know are State and Describe.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

StateDescribe

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

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Paper 3Theory (Core)1 marks

Description

The wire has a length of 2 meters and a cross-sectional area of 1 mm².

a
State the relationship between the length of the wire and its resistance.
Your answer
Aim for approximately 1 distinct marking point.
[1]

Revision notestopic notes

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