Figure 3 shows the parts in an electrical circuit - Edexcel - GCSE Physics - Question 2 - 2023 - Paper 2
Question 2
Figure 3 shows the parts in an electrical circuit.
Draw the circuit diagram of this electrical circuit in the space provided.
The battery symbol and some of the con... show full transcript
Worked Solution & Example Answer:Figure 3 shows the parts in an electrical circuit - Edexcel - GCSE Physics - Question 2 - 2023 - Paper 2
Step 1
Draw the circuit diagram of this electrical circuit in the space provided.
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Answer
To draw the circuit diagram:
Use the accepted symbols for each component:
Battery symbol for the 9V battery
Lamp symbol for the light bulb
Resistor symbol for the resistor
Switch symbol for the switch
Connect all components in series (lamp, switch, and resistor) to the battery as shown, with appropriate connections using lines.
Step 2
Calculate the total charge that flows through the lamp in 30 seconds.
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Answer
Given:
Current, I=0.46A
Time, t=30s
Using the formula:
Q=I×t
Substituting the values:
Q=0.46A×30s=13.8C
Thus, the total charge that flows through the lamp in 30 seconds is 13.8 C.
Step 3
Calculate the energy transferred to the lamp in one minute.
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Answer
Given:
Current, I=0.46A
Voltage, V=6.0V
Time, t=60s (1 minute)
Using the formula:
E=I×V×t
Substituting the values:
E=0.46A×6.0V×60s
Calculating:
E=0.46×6.0×60=165.6J
Thus, the energy transferred to the lamp in one minute is approximately 166 J.