Edexcel IGCSE Physics 2.8 Current in Series Circuits Questions

Practise using the rule for current in series circuits to complete ammeter readings and state the same current at different points.

Exam points

state the missing ammeter reading when current is unchanged around a series circuit
use given current values to infer the same current through each series component

[Maximum number: 1]

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

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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