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This question is about electrical circuits - Edexcel - GCSE Physics - Question 1 - 2022 - Paper 1

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This question is about electrical circuits. (a) Draw one straight line from each circuit symbol to its description. 1. circuit symbol * battery * LED * sw... show full transcript

Worked Solution & Example Answer:This question is about electrical circuits - Edexcel - GCSE Physics - Question 1 - 2022 - Paper 1

Step 1

Draw one straight line from each circuit symbol to its description.

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Answer

  1. Battery: -----
  2. LED: ------
  3. Switch: ------
  4. Resistor: ------

Step 2

The current in the lamp is a flow of:

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B) electrons

Step 3

Calculate the charge that flows through the lamp in a time of 300 s.

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To calculate the charge, we use the formula:

charge=current×timecharge = current \times time

Substituting the values:

charge=0.21 A×300 s=63 Ccharge = 0.21 \ A \times 300 \ s = 63 \ C

The unit of charge is Coulombs (C).

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