Cambridge IGCSE Physics practice

Paper 4 structured question: Action and use of circuit components

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Paper

Marks

Topic

Action and use of circuit components

Exam-style question

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Paper 4Theory (Extended)1 marks

A circuit consists of two resistors, R1 and R2, connected in series across a voltage supply of V_total.

Description

In this circuit, R1 = 2Ω and R2 = 3Ω. Calculate the voltage across R1 (V1) and R2 (V2).

a
State the formula used to calculate V1 in a potential divider.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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Paper 4Theory (Extended)2 marks

Description

Given R1 = 4Ω and R2 = 6Ω, with a total voltage of 12V, calculate V1 and V2.

a
State the values of V1 and V2.
Your answer
Aim for approximately 2 distinct marking points.
[2]