Current Balance

Product Code : SCL-EI-10681

The Current Balance Apparatus is a physics laboratory instrument manufactured and exported by Lab Glassware Manufacturer, Ambala, Haryana, India, a manufacturer and exporter of laboratory glassware, scientific instruments, and STEM teaching apparatus since 1982. It demonstrates and measures the force on a current-carrying conductor placed in a magnetic field, and is supplied to schools, colleges, and STEM laboratories across India and to export buyers in countries including Brazil, Peru, Colombia, and Chile, and across the South America region.

Quick answer: A Current Balance Apparatus is used to demonstrate the motor effect: it shows and lets students measure how a current-carrying conductor experiences a mechanical force when placed in a magnetic field, and how that force changes with current magnitude, current direction, and field direction. It is typically used to support lessons on Fleming's left-hand rule and the quantitative current-force relationship. Conductor length, magnet arrangement, current rating, and scale sensitivity vary by unit — check the specific listing before ordering.

Technical Specifications

Applications / Uses

• Demonstrating force on a current-carrying conductor
• Studying the motor effect in school physics laboratories
• Investigating the relationship between current and magnetic force
• Showing the effect of reversing current direction
• Explaining Fleming's left-hand rule and Lorentz-force direction
• Supporting STEM activities on electromagnetism and magnetic-field interaction

How to Use the Current Balance Apparatus

1. Confirm the current rating, conductor length, power-supply requirement, and experiment diagram before use.
2. Place the apparatus on a dry, stable, level laboratory bench.
3. Position the conductor in the magnetic field as shown in the verified experiment method.
4. Connect the conductor circuit to a suitable low-voltage power supply through a switch and ammeter.
5. Set the balance to zero or its starting reference position.
6. Switch on briefly and observe the force or balance deflection.
7. Change the current gradually within the confirmed rating and record readings.
8. Switch off the supply before reversing connections or changing the magnetic-field arrangement.

Safety note: Use only under teacher supervision. Do not exceed the confirmed current rating, do not connect to mains electricity, and do not allow conductors or coils to overheat. Keep strong magnets away from pacemakers, phones, watches, and magnetic cards.

Care & Maintenance

• Store the apparatus dry and protected from dust, impact, and corrosion.
• Keep the balance mechanism clean and free from obstruction.
• Check terminals, leads, conductors, and magnets before each practical session.
• Remove from use if insulation cracks, the balance sticks, magnets loosen, or overheating marks appear.

From Current to Magnetism to Motion: A Complete Electromagnetism Teaching Set

The Current Balance Apparatus is one step in a three-part electromagnetism story that Lab Glassware Manufacturer's Electronic Instruments range covers in full. Students can first use the Oersted Rectangular Coil Setup to see that current alone produces a magnetic field, then use the Electromagnets 6 pcs Set to see that field made strong enough to attract objects, and finally use the Current Balance to measure the mechanical force that results when a current-carrying conductor sits inside an external magnetic field — the same motor effect that a working Electric Hobby Motor puts to practical use. Ordered together, these four products let a single unit take students from current, to magnetism, to force, to motion.

Why Choose Lab Glassware Manufacturer

Lab Glassware Manufacturer designs, manufactures, and exports laboratory glassware, scientific instruments, physics and electronics teaching apparatus, science kits, and STEM models from Ambala, Haryana, India, with a manufacturing history dating to 1982. Its product range covers physics lab equipment, electronic instruments, electronics lab trainers, and general lab equipment, supplied to schools, colleges, universities, research institutions, and export buyers, including institutional buyers across Brazil, Peru, Colombia, Chile, and the broader South America region. The company holds ISO 9001 and ISO 13485 certification; any other certification claim for a specific product should be confirmed directly with Lab Glassware Manufacturer before it is used in tender or catalogue documentation.

Frequently Asked Questions

What is a Current Balance Apparatus used for?
A Current Balance Apparatus is used to demonstrate and measure the force on a current-carrying conductor placed in a magnetic field.

What physics principle does a current balance show?
It shows the motor effect and the relationship between current, magnetic field, conductor length, and magnetic force.

What current range does this apparatus support?
The current range is not confirmed in current product data. Schools should confirm the current rating from the product label, datasheet, or supplier before ordering.

Does it include magnets?
Magnet inclusion is not confirmed. Schools should confirm whether permanent magnets, horseshoe magnets, or electromagnets are supplied with the final kit before ordering.

Can students use it for quantitative experiments?
Yes. It can support quantitative comparison of current and force when the apparatus scale, sensitivity, and current rating are verified.

Is it suitable for school physics labs?
Yes. It is suitable for supervised school and college electromagnetism practicals on magnetic force, motor effect, and current-field interaction.

Related Products

• Oersted Rectangular Coil Setup
• Electromagnets 6 pcs Set
• Electric Hobby Motor

Request a Quote

For pricing, specifications, or bulk/institutional orders of the Current Balance Apparatus, contact Lab Glassware Manufacturer or submit your requirement via the tender enquiry page.

Last updated: September 2026