A student investigated how the current in a circuit varied with the number of lamps connected in parallel in the circuit - AQA - GCSE Physics - Question 4 - 2021 - Paper 1
Question 4
A student investigated how the current in a circuit varied with the number of lamps connected in parallel in the circuit.
Figure 4 shows the circuit with three iden... show full transcript
Worked Solution & Example Answer:A student investigated how the current in a circuit varied with the number of lamps connected in parallel in the circuit - AQA - GCSE Physics - Question 4 - 2021 - Paper 1
Step 1
As the number of lamps increased, the current
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Answer
increased.
Step 2
As the number of lamps increased, the total resistance of the circuit
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Answer
decreased.
Step 3
As the number of lamps increased, the potential difference across the battery
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Answer
stayed the same.
Step 4
What type of error would this lead to?
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Answer
Random error.
Step 5
Complete Table 2 to show the readings on ammeters A2 and A5.
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Answer
A2 = 0.12 A, A5 = 0.36 A.
Step 6
Calculate the power output of the lamp.
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