| Condition: | New |
|---|---|
| Customized: | Customized |
| Certification: | ISO9001 |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Adjustable Sliding Rheostat Physics Teaching Instrument 200Ω 1.25A
Product Introduction
SThe sliding rheostat is an advanced physics teaching tool, intricately designed with key components like a wire-wound porcelain tube, sliding head, sliding rod, bracket, and terminal. A hallmark of this device is its copper-nickel alloy resistance wire, shielded with an oxide film insulating layer, meticulously wound around the porcelain tube. The conductive brush elegantly glides over the wire surface, facilitating the modification of wire length to alter resistance, thereby adjusting voltage and current through a sophisticated resistance technique.
Product Specification
| Resistance value(Ω) | Rated current(A) |
| 0~10 | 2 |
| 0~20 | |
| 0~50 | 1.5 |
| 0~200 | 1.25 |
| 0~5 | 3 |
The varistor resistance value precision is maintained within an impressive ±10% margin of error.
Engineered for resilience, the varistor operates continuously at ambient temperatures ranging from -10°C to +40°C, with a relative humidity cap of 85%.
* Scale length on the slide rheostat top: 0-100mm, prominently displayed for ease of use.
* Porcelain pipe diameter: 45mm, ensuring optimal durability.
* Slide block boasts adjustable capabilities, ranging from 0-100mm for versatile application.
* Carbon brush ensures reliable slide contact for seamless performance.
* Tailor-made slide rheostat options with diverse resistance and ammeter specifications include:
10Ω, 5.6A; 180Ω, 2A; 333Ω, 0.95A, offering a wide array of choices.
* Overall dimensions: 270mm×95mm×135mm - compact yet functional.
Product feature and application
Ideal for laboratory research and testing, this sliding rheostat is pivotal in standard electrical instruments for altering voltage and current, or as a variable resistor to substitute undefined resistance values. A crucial asset in middle school physics teaching, it aids educators and students in conducting insightful group experiments.
Maintenance and precautions
1. Ensure the varistor is distanced from heat-sensitive objects for optimal performance and safety.
2. Prolonged inactivity might lead to the formation of an oxidized insulating layer at the brush-wire contact. Prior to usage, this layer should be carefully removed. Additionally, address any loosened screws or sliding heads caused by long-term vibration to maintain integrity.
3. Avoid exceeding the varistor's rated maximum load to ensure longevity and efficiency.
){kind=link}