Edexcel IGCSE Physics 2.8 Current in Series Circuits Questions

In a series circuit, the same current passes through every component. Use that rule to infer a missing ammeter reading from another point in the loop.

Exam points

Recognise that current is the same at different points in a series circuit and use this to complete or check ammeter readings.

[Maximum number: 1]

A student builds this electric circuit to measure the temperature of a room.

Figure for Question Edexcel IGCSE Physics 2.8 Current in Series Circuits Questions question 1 — Edexcel IGCSE Physics

At $20^{\circ} \mathrm{C}$ , the voltage across the thermistor is 3.9 V .

State the reading on the ammeter.

ammeter reading = ............ A

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Edexcel IGCSE Physics 2.8 Current in Series Circuits Questions question 1