Question 34
Question 34 of 40
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
9. Electricity
9.3. Resistance and resistivity

understand that the resistance of a light-dependent resistor (LDR) decreases as the light intensity increases

10. D.C. circuits
10.3. Potential dividers

explain the use of thermistors and light-dependent resistors in potential dividers to provide a potential difference that is dependent on temperature and light intensity