Physics · Unit 1 · Electrical circuits · Current, potential difference and energy flow
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A student investigates three different circuit configurations using identical 6.0 V batteries and identical 12 Ω resistors. Refer to the diagram below. Compare the total resistance and current drawn from the battery in Circuit A and Circuit B.
Compare the behaviour of current in series and parallel circuits when additional resistors are added to each configuration.
A student constructs two circuits using identical resistors and identical power supplies. Refer to the circuits shown below. **Circuit A:** Three resistors connected in series with a 12 V power supply. Ammeter reads 0.4 A. **Circuit B:** Three resistors connected in parallel with a 12 V power supply. Ammeter reads 3.6 A. Describe how the current distribution differs between the series and parallel configurations, and justify why the total current is different in the two circuits despite using identical components.