This question is about electrical circuits. (a) Draw one straight line from each circuit symbol to its description. circuit symbol description battery LED switch resistor (b) Figure 1 shows a lamp in a circuit. The lamp is switched on. Figure 1 (i) The current in the lamp is a flow of A atoms B electrons C neutrons D protons (ii) The current in the lamp is 0.21 A. Calculate the charge that flows through the lamp in a time of 300 s. State the unit of charge. Use the equation charge = current x time charge = ____________________ unit

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

Question 1

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

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

Step 1

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

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Answer

In the answer, you should draw the following lines:

Battery ➔ battery
LED ➔ LED
Switch ➔ switch
Resistor ➔ 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. State the unit of charge.

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Answer

To calculate the charge, use the formula:

\text{charge} = \text{current} \times \text{time}

Substituting the values:

\text{charge} = 0.21 \text{ A} \times 300 \text{ s} = 63 \text{ C}

Thus, the charge that flows through the lamp is 63 Coulombs.

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