CAIE A-Level Physics AS 10.3.1 The Principle of a Potential Divider Circuit Questions

Explain the principle of a potential-divider circuit and how voltage divides between components.

Exam points

Explain the principle of a potential-divider circuit and how voltage divides between components.

[Maximum number: 1]

A potential divider consists of two resistors of resistances $R_{1}$ and $R_{2}$ connected in series across a source of potential difference (p.d.) $V_{\text {in }}$ . The p.d. across $R_{1}$ is $V_{\text {out }}$ .

Figure for Question CAIE A-Level Physics AS 10.3.1 The Principle of a Potential Divider Circuit Questions question 1 — CAIE A-Level Physics AS

Which changes to $R_{1}$ and $R_{2}$ will increase the value of $V_{\text {out }}$ ?

$R_{1}$

$R_{2}$

doubled

halved

doubled

halved

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CAIE A-Level Physics AS 10.3.1 The Principle of a Potential Divider Circuit Questions question 1