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1 (a) Figure 1 shows some of the apparatus that students use to determine the resistance of a piece of iron wire - Edexcel - GCSE Physics Combined Science - Question 1 - 2023 - Paper 2
Question 1
1 (a) Figure 1 shows some of the apparatus that students use to determine the resistance of a piece of iron wire. (b) The students extend the investigation t... show full transcript
Worked Solution & Example Answer:1 (a) Figure 1 shows some of the apparatus that students use to determine the resistance of a piece of iron wire - Edexcel - GCSE Physics Combined Science - Question 1 - 2023 - Paper 2
Step 1
Add connecting wires, a voltmeter and an ammeter to complete the circuit in Figure 1
Answer
To complete the circuit shown in Figure 1, you will need to connect a voltmeter in parallel with the iron wire to measure the voltage across it, and an ammeter in series with the wire to measure the current flowing through it. Use connecting wires to establish these connections properly, ensuring the circuit is functional for accurate measurements.
Step 2
Give the name of one additional piece of apparatus the students would need
Answer
One additional piece of apparatus that the students would need is a ruler or measuring tape. This will allow them to accurately measure the length of the iron wire, which is essential for determining how its resistance varies with length.