Product Description

The 4 Inch Laboratory Bar Magnet is a practical science-laboratory accessory designed for experiments and demonstrations involving magnetism, magnetic poles, attraction, repulsion and magnetic fields.

A bar magnet has two opposite poles located near its ends, commonly identified as the North Pole and South Pole. Magnetic attraction is strongest around these pole areas. When a bar magnet is freely suspended away from nearby magnetic materials, it generally aligns approximately in a north–south direction.

This 4-inch model is suitable for school science laboratories, colleges, educational institutions, training centres and basic physics demonstrations. It can be used with iron filings, magnetic compasses and suitable magnetic materials to help students observe the behaviour of a magnetic field.

The exact magnet material, surface finish, magnetic strength, dimensions other than overall length and pole-marking style may vary according to the available model. Contact Inaya Scientific for confirmation before ordering when a specific technical specification is required.

Key Features

Practical 4-inch laboratory bar magnet
Traditional rectangular bar shape
Contains North and South magnetic poles
Suitable for educational magnetism experiments
Useful for attraction and repulsion demonstrations
Can be used for basic magnetic-field observations
Convenient size for classroom handling
Suitable for schools, colleges and training laboratories
Manufactured in India
Nationwide delivery available in Bangladesh

Product Overview

A bar magnet is a straight, magnetised object with two magnetic poles. Its magnetic effect is concentrated near the two ends of the bar. The ends are identified as the North and South poles.

Opposite poles attract each other, while matching poles repel each other. These properties make bar magnets useful for introducing students to the fundamental behaviour of magnetic forces.

The magnetic field surrounding a bar magnet can be demonstrated by placing the magnet beneath a sheet of paper or another suitable thin surface and carefully applying iron filings above it. The filings form a visible pattern corresponding to the magnetic field around the magnet. Typical school bar magnets may also use contrasting colours or markings to distinguish the poles.

General Specifications

Product Name: Bar Magnet

Product Category: Physics Laboratory Equipment

Product Type: Permanent educational magnet

Shape: Rectangular bar

Overall Length: 4 inches

Magnetic Poles: North and South

Country of Origin: India

Brand: Contact Inaya Scientific for confirmation

Magnet Material: Contact Inaya Scientific for confirmation

Magnetic Strength: Contact Inaya Scientific for confirmation

Width: Contact Inaya Scientific for confirmation

Thickness: Contact Inaya Scientific for confirmation

Weight: Contact Inaya Scientific for confirmation

Surface Finish: Subject to available model

Pole Colour or Marking: Subject to available model

Pack Quantity: Contact Inaya Scientific for confirmation

Recommended Use: Educational and laboratory demonstrations

The product should not be selected for calibrated, lifting, industrial holding or precision measurement applications unless its magnetic strength and material specifications have been confirmed.

Main Applications

Magnetic Attraction Experiments

The magnet can be used to test whether suitable objects or materials respond to a magnetic field. It is useful for demonstrating the attraction between a magnet and compatible magnetic materials.

Attraction and Repulsion Demonstrations

Using two compatible bar magnets, students can observe attraction between opposite poles and repulsion between matching poles.

Magnetic Field Demonstrations

The magnet may be used with iron filings to display the pattern of the magnetic field surrounding a bar magnet. The field extends around the magnet and is concentrated more strongly near its poles.

Compass Experiments

A magnetic compass can be positioned at different points around the magnet to observe changes in the direction of the magnetic field.

North–South Alignment Experiments

A bar magnet may be suspended from its centre using a suitable thread to demonstrate its tendency to align approximately in a north–south direction when it is away from nearby magnetic interference.

Classroom Physics Activities

The product is suitable for introductory lessons covering magnetic poles, magnetic force, magnetic materials and magnetic-field patterns.

School Science Projects

Students may use the magnet in supervised science projects, practical assignments and demonstrations involving basic magnetism.

Key Benefits

Makes basic magnetism concepts easier to demonstrate
Suitable for hands-on classroom learning
Convenient 4-inch size for common laboratory activities
Can support multiple introductory physics experiments
Reusable when stored and handled properly
Useful for individual or group science demonstrations
Suitable for teachers, students and laboratory instructors
Easy to combine with compasses, iron filings and magnetic objects

Who Should Buy This Product?

The 4 Inch Laboratory Bar Magnet may be suitable for:

School science laboratories
Colleges and universities
Physics laboratories
Science teachers
Laboratory instructors
STEM learning centres
Technical training institutes
Educational equipment suppliers
Science-project developers
Students conducting supervised experiments
Research and demonstration facilities requiring a basic bar magnet

Suggested Laboratory Experiments

Identifying Magnetic Materials

Bring the bar magnet close to different test objects and observe which materials respond to the magnetic field.

Locating the Magnetic Poles

Use small magnetic objects or iron filings to compare the attraction near the ends and centre of the magnet. Magnetic attraction is generally strongest near the two poles.

Observing Attraction and Repulsion

Place two bar magnets near each other and compare the behaviour of matching and opposite poles.

Mapping a Magnetic Field

Place a sheet of paper over the magnet, carefully sprinkle iron filings and gently tap the paper to observe the field pattern.

Using a Compass Around a Magnet

Move a compass around the bar magnet and mark the direction indicated by the compass needle at several positions.

Demonstrating Directional Alignment

Suspend the magnet horizontally from its centre and allow it to rotate freely. Observe the direction in which it settles.

Usage and Handling Guidelines

Use the Bar Magnet under appropriate teacher, instructor or laboratory supervision.

Handle it carefully and avoid dropping or striking it against hard surfaces. Physical impact may damage the magnet, its surface coating or its pole markings.

Keep the magnet dry and clean after use. Store it in a secure location away from excessive heat, moisture and loose metal particles.

Do not place it near equipment or materials that may be affected by magnetic fields. Keep it separated from sensitive electronic equipment and magnetic storage items.

When using iron filings, prevent direct contact between loose filings and the magnet whenever possible. A sheet of paper, plastic or another suitable barrier can make cleanup easier.

Do not use the product for lifting heavy objects or safety-critical applications. The magnetic holding strength has not been specified.

Bar Magnet Price in Bangladesh

The price of a 4 Inch Laboratory Bar Magnet in Bangladesh may depend on:

Magnet material
Magnetic strength
Width and thickness
Surface finish
Pole-marking style
Brand
Pack quantity
Current stock availability
Import and supply costs

Contact Inaya Scientific for the current price, stock status, available colour, complete dimensions and pack quantity.

Availability and Delivery in Bangladesh

The 4 Inch Laboratory Bar Magnet is available from Inaya Scientific, subject to current stock.

Customers requiring multiple units for a school, college, university or training laboratory should mention the required quantity when requesting a quotation.

Nationwide delivery is available across Bangladesh.

Why Choose Inaya Scientific?

Inaya Scientific supplies laboratory equipment, educational science products, testing materials, scientific instruments and laboratory accessories to customers throughout Bangladesh.

Customers can contact Inaya Scientific to confirm:

Current stock
Complete dimensions
Magnet material
Magnetic strength
Pole marking
Colour
Surface finish
Pack quantity
Bulk-order availability
Current price
Delivery arrangement

Confirming the required dimensions and application before ordering helps ensure that the appropriate magnet is supplied.

Frequently Asked Questions

What is a Bar Magnet?

A bar magnet is a straight magnetised object with two opposite poles, identified as North and South. Its magnetic force is concentrated mainly around the two ends.

What is the size of this Bar Magnet?

The overall specified length is 4 inches. Contact Inaya Scientific for confirmation of its width and thickness.

Where is this Bar Magnet manufactured?

The stated country of origin is India.

What material is the magnet made from?

The exact material has not been provided. Contact Inaya Scientific to confirm whether the available model uses ferrite, Alnico or another magnetic material.

What is the magnetic strength?

The magnetic strength or pull-force rating is not currently specified. Contact Inaya Scientific for confirmation if a specific magnetic strength is required.

Is it suitable for school science experiments?

Yes. It is intended for basic laboratory and classroom demonstrations involving magnetic poles, attraction, repulsion, compasses and magnetic-field patterns.

Can it be used with iron filings?

Yes. Iron filings can be used to help visualise the magnetic-field pattern around a bar magnet when the activity is conducted carefully under supervision.

Does it have North and South markings?

Bar magnets commonly have marked or colour-coded poles, but the exact marking and colour of this model depend on available stock. Contact Inaya Scientific for confirmation.

Is one magnet enough for all experiments?

One magnet is sufficient for magnetic-field, compass and material-attraction demonstrations. Experiments involving attraction and repulsion between two magnets generally require two compatible magnets.

Is this suitable for industrial lifting?

No industrial pull-force or lifting capacity has been provided. It should not be used for lifting, load holding or safety-critical applications.

How should the magnet be stored?

Store it in a clean, dry and secure place. Protect it from impact, excessive heat, moisture and materials that may be affected by magnetic fields.

Can I order multiple magnets for a laboratory?

Bulk quantities may be available. Contact Inaya Scientific with the required number of magnets to receive current stock and pricing information.

The 4 Inch Laboratory Bar Magnet is a useful educational accessory for demonstrating magnetic poles, attraction, repulsion, directional alignment and magnetic-field patterns.

It is suitable for schools, colleges, training centres and basic physics laboratories. Buyers requiring a particular magnetic strength, material, width, thickness, colour or pole marking should confirm those details before ordering.

Order From Inaya Scientific

Seller: Inaya Scientific

Product: Bar Magnet

Product Type: Strong and Durable Laboratory Magnet

Size: 4 inches