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b) When a battery is connected to a lamp, charge flows through the connecting wires in the circuit - Edexcel - GCSE Physics - Question 2 - 2017 - Paper 1
Question 2
b) When a battery is connected to a lamp, charge flows through the connecting wires in the circuit. Complete the sentence by putting a cross (X) in the box next to ... show full transcript
Worked Solution & Example Answer:b) When a battery is connected to a lamp, charge flows through the connecting wires in the circuit - Edexcel - GCSE Physics - Question 2 - 2017 - Paper 1
Step 1
When a battery is connected to a lamp, charge flows through the connecting wires in the circuit.
Answer
C negative charge flows towards the positive terminal of the battery.
This is because in a circuit, it is the electrons (which carry a negative charge) that move, flowing from the negative terminal towards the positive terminal.
Step 2
Explain how the PET chips become positively charged and the PVC chips become negatively charged.
Answer
The PET chips become positively charged by losing electrons during the tumbling process. Conversely, the PVC chips gain these electrons, which gives them a negative charge. This transfer of electrons occurs due to friction and contact between the two types of plastic.
Step 3
Explain why the PVC chips leave the drum.
Answer
The PVC chips leave the drum because they are attracted to the positively charged metal rod. As they pass the rod, the positive charge pulls the negatively charged PVC chips toward it, causing them to fall into the collecting bin on the right.
Step 4