Schematic

Instructions

• The resistance of an LDR reduces with the intensity of light falling on it.
• ExpEYES can measure resistance between the terminal SEN and Ground.
• Connecting SEN to A1 allows us to view the change in resistance.
• Make the connectors as shown in the figure.
• Compare the output at A1 using sunlight and the light from a fluorescent tube.
• Is there any AC component in the case of fluorescent tube ?