Compound Friction Rod – Half Glass & Half Brass

The Compound Friction Rod is a specialized electrostatics accessory designed for experiments involving frictional charging, electrical conductivity, static charge, and the behaviour of different materials.

Micro Technologies supplies the rod in a half-glass and half-brass construction, combining an insulating material and a conducting material within a single experimental accessory.

The glass section can be used in suitable friction-charging experiments to generate and investigate electrostatic charge. Because glass is an electrical insulator, charge placed on its surface does not move freely through the material.

The brass section, in contrast, is electrically conductive. This difference allows the rod to be used for comparative demonstrations involving the behaviour of charge on conductors and insulators.

By incorporating both materials in one rod, the apparatus provides a convenient way to investigate how the electrical properties of a material affect charge generation, retention, movement, and dissipation.

The rod measures approximately 300 mm in length and 13 mm in diameter, providing a convenient size for handling during bench-top experiments.

The Compound Friction Rod can be used individually or in combination with suitable electrostatic accessories such as electroscopes, pith balls, friction materials, electrostatic pendulums, and charge-detection apparatus.

Features

• Compound electrostatic friction rod
• Half glass construction
• Half brass construction
• Approx. 300 mm overall length
• Approx. 13 mm diameter
• Combines insulating and conducting materials
• Suitable for friction-charging experiments
• Supports conductor-insulator comparison
• Useful for static charge investigations
• Suitable for charge-transfer experiments
• Cylindrical and easy-to-handle design
• No external electrical supply required
• Reusable experimental accessory

Benefits

• Combines two electrically different materials in one rod
• Allows direct comparison of conductor and insulator behaviour
• Useful for demonstrating frictional charging
• Helps investigate charge retention and movement
• Reduces the need for separate comparison rods in basic experiments
• Convenient dimensions support easy handling
• Compatible with common electrostatic apparatus
• Suitable for repeated electrostatic investigations

Product Specifications

Applications

• Friction charging experiments
• Static electricity investigations
• Conductor and insulator comparison
• Charge-transfer experiments
• Electrostatic charge detection
• Charge retention investigations
• Electroscope experiments
• Pith ball demonstrations
• Material conductivity comparison
• Electrostatic attraction experiments
• Electrostatics laboratory investigations

Available Variants

• MT-45038 – Compound Friction Rod, Half Glass/Half Brass, 300 × 13 mm
• Glass & Brass Electrostatic Rod
• Compound Electrostatic Charging Rod
• Conductor-Insulator Demonstration Rod
• Customized configurations for bulk requirements

FAQs

What is a Compound Friction Rod used for?

It is used for electrostatic experiments involving friction charging, static electricity, charge transfer, and comparison between conducting and insulating materials.

What materials are used in the rod?

The rod is constructed half from glass and half from brass.

What is the size of the Compound Friction Rod?

It measures approximately 300 mm in length and 13 mm in diameter.

Why are glass and brass combined in one rod?

Glass and brass have different electrical properties. Glass acts as an insulator, while brass is a conductor, allowing their electrostatic behaviour to be compared conveniently.

Is glass an electrical conductor?

No. Under ordinary experimental conditions, glass acts as an electrical insulator.

Is brass electrically conductive?

Yes. Brass is an electrical conductor and allows electric charge to move through it relatively easily.

Can the rod be used for friction-charging experiments?

Yes. The glass section can be used with a suitable friction material for static charge generation and related investigations.

Can it demonstrate the difference between conductors and insulators?

Yes. This is one of the useful applications of its combined glass-and-brass construction.

Can it be used with an electroscope?

Yes. The rod can be incorporated into suitable electroscope and charge-detection experiments.

Does it require a power supply?

No. Basic friction-charging experiments using the rod do not require an external electrical power supply.

Is the Compound Friction Rod reusable?

Yes. It is designed for repeated electrostatic experiments when properly handled and maintained.

Can Compound Friction Rods be supplied in bulk?

Yes. Micro Technologies can supply Compound Friction Rods in bulk for laboratories, universities, colleges, research facilities, distributors, and institutional procurement.

Why Choose Our Products

• Half glass and half brass construction
• Standard 300 × 13 mm dimensions
• Conductor and insulator comparison in one apparatus
• Suitable for friction-charging investigations
• Supports multiple electrostatic experiments
• Simple, durable and reusable
• Bulk supply available

Call to Action

Demonstrate the difference between conducting and insulating materials with the Compound Friction Rod from Micro Technologies. Contact us for competitive quotations, bulk orders, distributor requirements, institutional procurement, and complete electrostatics laboratory equipment solutions.