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Brand: COMETEK
Cometek Rheostat - Linear Type Sliding Rheostat - Length: 10 Inches, 50 ohms : 2.8 Ampere
SKU: TB-CO-73385
Estimated Delivery By: Jun 25 - Jun 27 
MRP : ₹1500 ₹1489
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Estimated Delivery By: Jun 25 - Jun 27 Easy Return
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₹1489 (Including GST)
MRP : ₹1500
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Short Description
Cometek Rheostat - Linear Type Sliding Rheostat
Length: 10 Inches, 50 ohms : 2.8 Ampere
Country of origin: India
Specifications
- Brand: COMETEK
- Core Tube Length: 10 Inches (approx. 254 mm)
- Maximum Resistance: 50 (Ohms)
- Maximum Current Rating: 2.8 A (Amperes)
Description
The Cometek Linear Type Sliding Rheostat (10 Inches, 50 Ohms : 2.8 Ampere) is a professional-grade electrical variable resistor specifically engineered for accurate current control and voltage distribution within secondary, university, and engineering physics laboratories. Built with an extended 10-inch frame, this instrument utilizes a heavy-wall insulating ceramic cylinder wrapped tightly in an oxidized constantan alloy wire matrix that guarantees uniform resistance values and exceptional thermal stability under continuous operation. The integrated slider carriage features high tension metal brush contacts that sweep smoothly across the polished track, enabling step free electrical micro adjustments. Supporting up to a 2.8A current limit, this 50-ohm device is ideal for safeguarding delicate circuit elements, altering circuit impedances, and clarifying basic electromagnetic laws.
Features
:- Low Friction Carriage Rail: Features a rigid metal guide bar and spring loaded wipers that keep constant electrical contact with zero micro-signal interruptions.
- Dual Action Circuit Compatibility: Equipped with three distinct terminal connections, permitting instant transformation between a 2-terminal series current regulator and a 3-terminal voltage divider.
- Anti Tip Metal Support Pillars: Supported by rugged, die-cast end brackets that securely anchor the ceramic core while isolating high voltages from the lab bench surface.
- Porcelain Substrate Body: Constructed with a high-density, thermal-shock resistant ceramic core built to absorb heat generated under load without warping or cracking.
Applications
:- Wheatstone Bridge Balancing: Acts as a finely adjustable manual resistor arm to calibrate bridge balancing circuits during mystery resistance evaluations.
- Series Protective Current Limiters: Ideal for creating a protective resistance barrier to prevent over-current blowouts in sensitive analog ammeters and experimental galvono meters.
- RC Circuit Time-Constant Mapping: Used to manipulate total circuit resistance ($R$) within resistor-capacitor loops to alter and analyze voltage charging curves over time.
- Semiconductor Curve Tracing: Enables students to step-control forward and reverse biasing thresholds when mapping operating characteristics of diodes and transistors.
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