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With reference to the circuit shown below: (i) Identify the electronic components A, B, C and D - Leaving Cert Engineering - Question c - 2008

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Question c

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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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