LDR Characteristics Apparatus Manufacturer,Supplier and Exporter in India
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Product Code : SCL-LM-14587
Indian Lab Suppliers supplies the LDR Characteristics Apparatus (Product ID: 14587) as part of its lab meters range. This apparatus measures how the resistance of a light dependent resistor (LDR) changes with illumination.
Quick Answer
The LDR is a cadmium sulphide photoresistor: more light frees more charge carriers, so its resistance falls from above 1 MΩ in the dark to a few hundred ohms in bright light. A 6–12 V LED or lamp source with adjustable intensity and a variable distance lets students change the illumination; from a small source it falls roughly as 1/d². A regulated 0–12 V DC supply, voltmeter and ammeter or multimeter, leads and a manual are listed, on an ABS or laminated wooden board. Please confirm the meters and light source supplied at quotation.
Key Specifications
| Parameter | Detail |
|---|---|
| Sensor | CdS light dependent resistor |
| LDR resistance | Few hundred Ω (bright) to over 1 MΩ (dark) |
| Light source | LED or lamp, 6–12 V, adjustable |
| Supply | Regulated 0–12 V DC |
| Meters | Digital voltmeter and ammeter, or multimeter (by model) |
| Board | ABS or laminated wood |
| Accessories | Leads, manual, fixed mounts |
Where This Is Used
Used in physics and electronics practicals on photoconductivity and light sensors. For resistance checks see the Digital Ohms Meter – 20K Ohm (Product ID: 14546); for other semiconductor work, the Transistor Characteristics Apparatus (Gujarat Type) (Product ID: 14651). Browse the full Lab Meters range or related Electronics Lab Equipment products.
Frequently Asked Questions
What happens to LDR resistance in light?
It falls as illumination rises.
What graphs can students plot?
Resistance against illumination or distance, and V–I at fixed light.
What LDR material is used?
Cadmium sulphide.
Related Categories
Lab Meters · Electronics Lab Equipment · Light and Optics
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For pricing, bulk quantities or tender documentation on the LDR Characteristics Apparatus, reach our team via Contact Us or submit your requirement through our Tenders page.
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