With reference to the circuit shown below:
(i) Identify the electronic components A, B, C and D - Leaving Cert Engineering - Question c - 2008
Question c
With reference to the circuit shown below:
(i) Identify the electronic components A, B, C and D.
(ii) Describe the function of A and the function of B.
Worked Solution & Example Answer:With reference to the circuit shown below:
(i) Identify the electronic components A, B, C and D - Leaving Cert Engineering - Question c - 2008
Step 1
Identify the electronic components A, B, C and D.
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Answer
A is a Light Dependent Resistor (LDR),
B is a Light Bulb,
C is a Fixed Resistor,
D is a Variable Resistor.
Step 2
Describe the function of A and the function of B.
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Answer
The component A (Light Dependent Resistor) changes its resistance based on the amount of light falling on it, functioning as a light sensor. The component B (Light Bulb) is intended to provide illumination when the circuit is activated by the input from the LDR. The relationship between A and B allows the light bulb to turn on or off based on ambient light conditions.
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