logo

Cambridge IGCSE Combined Science practice

Paper 3 structured question: Electrical circuits

Try the question first, then check the answer and practise the same topic again.

At a glance

3

Paper

2

Marks

Topic

Electrical circuits

Exam-style question

Try this first

Paper 3Theory (Core)2 marks

Understanding parallel circuits is essential in electronics.

Description

Parallel Resistor Circuit

In a circuit with two resistors, R1 = 5Ω and R2 = 10Ω, connected in parallel, calculate the total resistance.

  1. a

    Calculate the total resistance of the circuit.

    Aim for approximately 2 distinct marking points.

    [2]

0 of 1 part answered

Answer every part before opening the mark scheme.

Common mistake

No common mistake is linked to this question yet.

Related flashcards

Flashcard 1 of 6

Press Space to flip, arrows to move

Related practice questions

Question 1 of 5

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

0 of 4 attempted

Paper 3 structured question: Electrical circuits

Paper 3Theory (Core)3 marks

Description

Effects of Adding Resistors

Discuss the impact on total resistance when a third resistor is added in parallel to two existing resistors.

  1. a

    Discuss the changes in total resistance when a third resistor is added in parallel.

    Aim for approximately 3 distinct marking points.

    [3]