logo

Learning objective

Understand that the potential difference across a conductor increases with its resistance when the current remains constant.

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

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE PhysicsElectricity and magnetismCore content

Study support

Understand this objective

Quick explanation

Understand that the potential difference across a conductor increases with its resistance when the current remains constant

  • This point belongs to Action and use of circuit components, especially Action and use of circuit components outcomes.
  • You need to be able to understand that the potential difference across a conductor increases with its resistance when the current remains constant.
  • The key ideas to know are Know and Understand.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

KnowUnderstand

Why it matters

This objective helps connect Action and use of circuit components outcomes to exam-style questions, flashcards, and revision notes for Action and use of circuit components.

Revision tools

Choose how to practise

Back to topic hub
Flashcards10 linked cards

Flashcard 1 of 10

Press Space to flip, arrows to move
Practice Questions7 linked questions

Question 1 of 7

Choose an answer, get feedback, then move sideways through the set.

0 of 5 attempted

Paper 3 structured question: Action and use of circuit components

Paper 3Theory (Core)1 marks

Description

Potential Difference and Resistance

In a circuit, a conductor has a resistance of 10Ω and a current of 2A flowing through it.

  1. a

    State the potential difference across the conductor.

    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.

Open revision notes

Related learning objectives

Revision hubs

Move back to a broader study route