Rheostat 11 ohm 5 amp Porcelain Manufacturer,Supplier and Exporter in India

Product Code : SCL-PLE-11967

The Rheostat 11 ohm 5 amp Porcelain by Scientifc Equipment is an educational physics and electronics laboratory apparatus designed for demonstrating variable resistance, current control, voltage variation, Ohm’s law, load regulation, heat effect of current, and basic circuit behaviour. It is suitable for school physics laboratories, college science labs, electronics classrooms, STEM labs, teacher-led demonstrations, and supervised student practical activities.

This porcelain rheostat provides an adjustable resistance of approximately 11 ohm with a current rating of 5 amp, depending on product configuration. It is commonly used in low-voltage electrical experiments where students need to vary current smoothly and observe the effect of resistance in a circuit.

Product Description

A rheostat is a variable resistor used to control current in an electrical circuit. The Rheostat 11 ohm 5 amp Porcelain generally consists of resistance wire wound on a porcelain or ceramic former with a sliding contact that allows the effective resistance to be changed. By moving the slider, students can increase or decrease resistance and observe changes in current, voltage, lamp brightness, motor speed, or meter readings.

The Scientifc Equipment Rheostat 11 ohm 5 amp Porcelain may include a porcelain resistance tube, wire wound resistance element, sliding contact, metal support frame, terminals, insulated knob, base, and connecting points depending on product configuration. It is designed for supervised educational and laboratory demonstration use only.

Key Features

• Educational rheostat for variable resistance and current control experiments.
• Approximate resistance value of 11 ohm with 5 amp current rating depending on configuration.
• Porcelain or ceramic body helps support the resistance winding during laboratory use.
• Useful for Ohm’s law, current regulation, voltage variation, and load control demonstrations.
• Sliding contact allows smooth adjustment of resistance in a circuit.
• Suitable for physics labs, electronics classrooms, STEM activities, and electrical training.
• Can be used with low-voltage power supplies, lamps, motors, meters, and circuit boards.
• Encourages observation, measurement, calculation, graph plotting, and circuit troubleshooting.
• Designed for supervised low-voltage educational laboratory use only.

Product Specifications

How to Use

1. Place the Rheostat 11 ohm 5 amp Porcelain on a clean, dry, stable, and non-conductive laboratory surface.
2. Inspect the porcelain body, resistance wire, slider, terminals, knob, base, and connecting leads before use.
3. Confirm the circuit diagram, supply voltage, and expected current before making connections.
4. Connect the rheostat in series with the load if it is being used to control current.
5. Use only a battery or approved low-voltage educational DC power supply.
6. Connect an ammeter in series if current measurement is required.
7. Connect a voltmeter or multimeter across the required component if voltage measurement is required.
8. Set the slider to a suitable starting position before switching on the circuit.
9. Switch on the power supply and move the slider slowly to vary the resistance.
10. Observe changes in current, voltage, lamp brightness, motor speed, or load response.
11. Record readings at different slider positions in the practical notebook.
12. Calculate resistance, current, voltage, or power if required by the experiment.
13. Switch off the circuit after use and allow the rheostat to cool before touching or storing it.

Safety and Handling Instructions

• Use only under teacher, laboratory instructor, or trained adult supervision.
• Use only with batteries or approved low-voltage educational power supplies.
• Do not connect the rheostat directly to mains electricity.
• Do not exceed the rated current of 5 amp or the recommended circuit conditions.
• Switch off the power before changing wiring, meters, loads, or circuit layout.
• The resistance wire and porcelain body may become hot during operation; allow cooling before handling.
• Do not touch the resistance wire or slider contact during operation.
• Do not short-circuit the power supply, rheostat terminals, connecting leads, or load.
• Keep the rheostat away from water, chemicals, wet benches, paper clutter, fabrics, and flammable materials.
• Do not use cracked porcelain, broken slider contacts, loose terminals, exposed wires, damaged knobs, or burnt resistance wire.
• Use insulated leads and proper terminals to prevent accidental contact.
• Store the rheostat in a clean, dry, and protective place after use.

Educational Applications

• Demonstrating variable resistance in an electrical circuit.
• Controlling current in low-voltage physics experiments.
• Verifying Ohm’s law using voltage and current measurements.
• Studying voltage drop across a variable resistor.
• Controlling lamp brightness or small motor speed in demonstration circuits.
• Explaining power dissipation and heat effect of electric current.
• Supporting series circuit experiments and load testing activities.
• Encouraging measurement, calculation, graphing, comparison, and safe circuit practice.

Why Choose Scientifc Equipment Rheostat 11 ohm 5 amp Porcelain?

The Scientifc Equipment Rheostat 11 ohm 5 amp Porcelain provides a reliable and practical way to demonstrate variable resistance and current control in educational circuits. Its porcelain wire wound design is suitable for supervised low-voltage laboratory experiments involving Ohm’s law, voltage variation, power dissipation, and circuit behaviour.

FAQ

1. What is Rheostat 11 ohm 5 amp Porcelain used for?

It is used to vary resistance in a circuit, control current, demonstrate Ohm’s law, observe voltage drop, and study load response in low-voltage electrical experiments.

2. Is this rheostat suitable for school physics laboratories?

Yes, it is suitable for school physics labs, college science labs, electronics classrooms, STEM labs, and supervised student practical work.

3. What does 11 ohm mean?

11 ohm is the approximate maximum resistance value of the rheostat, depending on product configuration and tolerance.

4. What does 5 amp mean?

5 amp is the rated current capacity of the rheostat under suitable operating conditions, depending on product configuration and safe usage.

5. Why is porcelain used in this rheostat?

Porcelain or ceramic is commonly used as an insulating and heat-resistant support for the resistance wire in laboratory rheostats.

6. Can this rheostat become hot during use?

Yes, rheostats can become hot when current flows through the resistance wire, especially at higher current levels. It should be allowed to cool before handling.

7. Can students use this rheostat independently?

Students should use it under teacher or laboratory instructor supervision because it involves electrical connections, current control, meters, and possible heat generation.

8. How should Rheostat 11 ohm 5 amp Porcelain be stored?

Switch off and disconnect all power sources, allow the rheostat to cool fully, inspect it for damage, and store it in a clean, dry, protective place away from moisture, dust, chemicals, heat, impact, and rough handling.

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This product content is prepared to support teachers, school buyers, laboratory suppliers, physics educators, electronics instructors, STEM coordinators, electrical trainers, lab technicians, students, and educational institutions with clear product information, practical specifications, usage guidance, safety instructions, and helpful FAQs. The content focuses on accurate educational rheostat and circuit applications, supervised Rheostat 11 ohm 5 amp Porcelain use, safe handling of low-voltage circuits, meters, heated resistance wire, porcelain body, terminals, connecting leads, Ohm’s law learning, current control, voltage-current measurement, and trustworthy product guidance while clearly stating that the product is for educational and supervised demonstration use only.