The circuit shown in the diagram was set-up by a pupil - Junior Cycle Science - Question a - 2012
Question a
The circuit shown in the diagram was set-up by a pupil. Component C gave out light.
(i) Name components B and C labelled and shown in the diagram.
B ______________... show full transcript
Worked Solution & Example Answer:The circuit shown in the diagram was set-up by a pupil - Junior Cycle Science - Question a - 2012
Step 1
Name components B and C labelled and shown in the diagram.
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Answer
B: Resistor
C: LED (Light Emitting Diode)
Step 2
Give the function of component A and the function of component B.
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Answer
A: Supplies electricity (electrical energy) / Direct current (DC).
B: Controls and regulates the current, protecting the LED.
Step 3
Draw a diagram of a circuit that could be used to measure the resistance of a light-dependent resistor (LDR) when exposed to light of varying brightness.
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Answer
Start with a light-dependent resistor (LDR) connected in series with a battery.
Connect a multimeter or ohmmeter in parallel with the LDR to measure resistance.
Ensure the circuit is arranged such that the multimeter reads the resistance in ohms when exposed to light.
