The diagrams show bulbs connected in series and in parallel across a battery - Junior Cycle Science - Question h - 2018
Question h
The diagrams show bulbs connected in series and in parallel across a battery.
(i) In which circuit, X or Y, are the bulbs connected in series?
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Worked Solution & Example Answer:The diagrams show bulbs connected in series and in parallel across a battery - Junior Cycle Science - Question h - 2018
Step 1
In which circuit, X or Y, are the bulbs connected in series?
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Answer
The bulbs are connected in series in Circuit X. In a series connection, the current flows through each bulb one after the other, which is evident in the diagram where the bulbs are aligned in a single path.
Step 2
Name device A.
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Answer
Device A is an ammeter. Ammeters are used to measure the current flowing through the circuit.
Step 3
Tick (✓) the correct statements for each circuit, X or Y.
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Answer
The bulbs are brighter: This is true for Circuit Y because in parallel circuits, the voltage across each bulb is the same and thus they receive full voltage, making them brighter.
If one bulb is unscrewed, no bulb will light: This is true for Circuit X, as in a series circuit, if one bulb is removed, the circuit is broken and all bulbs will go out.
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