Paper 4 H - SAMPLE SET 1 Q8 Answers
8) A student is investigating some electrical components.
8.1) Describe how the student could set up a circuit to find the resistance of a lamp.
You should include a circuit diagram in your answer. [4 marks]
The student is given an electrical component in a sealed box.
She has to find out what the electrical component is by experiment.
The student records the current and the potential difference for the component.
Her results are shown in Figure 6
8.1) Describe how the student could set up a circuit to find the resistance of a lamp.
You should include a circuit diagram in your answer. [4 marks]
The student is given an electrical component in a sealed box.
She has to find out what the electrical component is by experiment.
The student records the current and the potential difference for the component.
Her results are shown in Figure 6
8.2) Explain how the student could know that the electrical component in the sealed box is not an ohmic conductor. [2 marks]
8.3) What is the electrical component in the sealed box?
Explain your answer. [3 marks]
Component ______________________________
Explanation ______________________________
8.4) Use the graph to determine the resistance of the component at 2.3 V. [4 marks]
8.3) What is the electrical component in the sealed box?
Explain your answer. [3 marks]
Component ______________________________
Explanation ______________________________
8.4) Use the graph to determine the resistance of the component at 2.3 V. [4 marks]
Resistance = _____________ Ω
(Total for Question 8 = 13 marks)