Electromagnetism, Capacitors and Induction
11-Step Capacitor Set, 100 pF to 0.47 µF, 350 V AC Rated
- 11 fixed capacitor values, no switches, step selection by patching circuits with 4 mm banana sockets.
- Values from 100 pF to 0.22 µF cover pF, nF, µF ranges for filters, timing, resonance, and reactance practicals.
- Rugged metal housing supports classroom and workshop handling, keeps components protected and organised.
- Individual sockets allow easy series and parallel combinations to create custom capacitance totals for experiments.
- Rated to 350 V AC or DC, suitable for higher-voltage training circuits within specified limits.
$148.00 (Ex GST)
Adjustable Aepinus Air Capacitor, 200/283 mm Square Plates, 2–250 pF Range
- Adjustable air capacitor with two interchangeable square plate sets, quick change design, no loose parts.
- Magnetic plate alignment keeps plates parallel and true within friction slider blocks for stable measurements.
- Plate spacing adjustable 1–120 mm, capacitance approximately 300 pF down to 2 pF.
- Built-in protection prevents circuit issues if plates accidentally touch during adjustment.
- 4 mm sockets for each plate, sturdy feet for stable bench positioning during experiments.
$265.00 (Ex GST)
Air Cored Inductance Coils, Laboratory Inductor Type
- Air cored inductance coils matched to IEC small demonstration transformer coil format and Hodson Induction Kit
- Inductance options 5 mH, 10 mH, 15 mH, 20 mH by adjusted turns
- Two 4 mm banana sockets moulded into the coil body for quick instrument connections
- Consistent coil design across the series, supporting repeatable demonstrations of inductance and electromagnetic induction
- Each coil supplied as a single component, choose the required millihenry value for the experiment
From $45.00 (Ex GST)
This product has multiple variants. The options may be chosen on the product page
Air-Cored Solenoid Coil, 700 Turns, 5 A Copper Wire (PSSC)
- Moulded plastic bobbin air-core solenoid for known magnetic field strength in teaching and calibration setups.
- Use over magic eye tube for mass of electron experiment, also IEC current balance apparatus construction.
- For IEC hall effect apparatus calibration when a repeatable magnetic field of known strength is required.
- 700 turns copper wire winding, carries about 5 A maximum current for strong, stable field generation.
- 150 mm length, 37 mm bore, inward 4 mm socket terminals allow flat bench placement at ends.
$133.00 (Ex GST)
Capacitor Box, Decade Capacitance Type
- Rotary capacitor selection boxes, decade models with 10 steps per dial, plus 12 step discrete selection option
- Ranges cover 220 pF to 11.11 µF, with totals 1.11 µF, 11.1 µF, or 11.11 µF depending on dial count
- Step sizes include 0.001 µF, 0.01 µF, and 1 µF increments, plus discrete capacitor selection by position
- Voltage ratings: 400 V DC on multi dial decade units, 250 V DC or 150 V AC on single dial units
- 4 mm spin free terminals with extra earthing terminal, typical accuracy ±5% across the range
From $147.00 (Ex GST)
This product has multiple variants. The options may be chosen on the product page
Constant-Current Capacitor Charging Apparatus with Power Supply Included
- Calculates capacitance in µF using constant-current charging and first-principles measurements.
- Very small charging current is set then held constant throughout the charge period for clean analysis.
- Capacitor voltage monitored with high-impedance DVM, 10 MΩ input resistance specified.
- Student uses stopwatch timing, linking current, time, and voltage to determine capacitance value.
- Compact 9 V battery supply, typical currents under 1 mA, supports long battery life in class use.
$102.00 (Ex GST)
Dissectible Transformer Kit with Spot Weld Module and Full Accessory Set Included
- 35 × 35 mm iron core, “U” and clamped “I” section to close magnetic circuit.
- Mains primary coil with on/off switch, removable mains cable, standard teaching configuration.
- Tapped low-voltage secondary coil, heavy-current output for practical transformer experiments.
- Includes spot welder and heavy copper ring for induction heating, wax or solder melting demos.
- Glass-filled nylon coil formers, heat resistant, unbreakable design, Thompson’s ring included.
$855.00 (Ex GST)
Electromagnet, Soft Iron U Core with Dual Coils and 4 mm Terminals
• Soft iron U-core electromagnet, large size, 10 cm overall length, hands-on classroom demonstrator.
• Two copper wire coils supplied, fit over core legs, create strong U-shaped magnetic circuit for practical lessons.
• Two 4 mm captive terminals, fast connection with standard lab leads to low-voltage DC supply.
• Operates on 4.5–6 V, suitable for low-voltage magnetism force and attraction demonstrations on the bench.
• Complete kit includes U-core plus coils plus terminals, ready for student experiments and reliable repeat use.
$39.50 (Ex GST)
Electromagnetic Induction Demonstrator with Rotating Wire and Rod Magnet
- Single-turn heavy wire loop rotated by hand around strong rod magnet for core induction demonstrations.
- Loop cuts magnetic field, generates very small induced voltage detectable with a very sensitive meter.
- Demonstrates conductor cutting magnetic lines of force, fundamental electromagnetic induction theory.
- Includes a built-in “mystery” teaching prompt for student discussion during experiments and lessons.
- Optional IEC DC amplifier LB0071-001 boosts small current for reading on student mA bench meters.
$262.00 (Ex GST)
Electrostatic Pith Balls, Laboratory Charge Study Model
- Electrostatic pith balls for classroom demonstrations, available as plain or conductive coated sets
- Approx 8 mm diameter, light mass supports visible attraction, repulsion and charge transfer behaviour
- Plain option supplied as pack of 12, general ball shape, not fully round as described
- Conductive option supplied as pack of 10, surface coated with conductive paint for experiment use
- Suitable for electrostatic investigations using charged rods, electroscopes or induction setups where ball motion
- indicates field effects
From $10.00 (Ex GST)
This product has multiple variants. The options may be chosen on the product page
Oersted’s Law Demonstrator, Current and Magnetic Needle Deflection Apparatus
- Oersted’s law demonstrator, shows magnetic effect of current in straight wire on needle deflection.
- Wire path over or under needle, reverse current direction, observe field direction change clearly.
- Aluminium frame with permanent magnetic needle on sensitive agate bearing, smooth low-friction movement.
- Sturdy base with binding posts, stable setup for repeatable electricity and magnetism practicals.
- Needle length noted as 75 mm or 15 cm in supplied info, confirm model specification before purchase
$30.00 (Ex GST)
Transformer 240V AC to 12V AC 12A ,Triple Output Terminals
- 220/240 V to 12 V AC transformer, supplies three separate low-voltage circuits from one mains unit.
- Total load up to 12 A across all outputs, suitable for multiple 12 V AC classroom devices.
- Three output pairs on 4 mm spin-free IEC terminals, easy wiring to three independent circuits.
- Designed to run up to three Hodson light boxes or similar 12 V AC equipment as specified.
- Fixed mains cable, non-removable lead, simple plug-in operation for lab benches and classrooms.
$219.50 (Ex GST)
Wimshurst Machine and Spare Belts, Electrostatic Demonstration Range
- Wimshurst machine setup for electrostatic charge and discharge demonstration
- Main unit uses hand-cranked counter-rotating plates to generate charge
- Charge is stored in Leyden jar capacitors during demonstration use
- Spare belt pair suits EM1641-01 for current replacement needs
- Single spare belt option supports maintenance of older style machines
From $10.00 (Ex GST)
This product has multiple variants. The options may be chosen on the product page
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Electromagnetism, Capacitors and Induction equipment is designed to support practical teaching and demonstration of core electrical and magnetic principles in physics classrooms, laboratories, and training environments. This category includes capacitor sets, air capacitors, inductance coils, solenoids, transformer kits, electromagnets, induction demonstrators, electrostatic models, and related experimental apparatus used to explore charge, capacitance, inductance, magnetic fields, and electromagnetic induction.
These products enable hands-on experiments covering key physics concepts such as capacitance variation, charge storage, electric field behaviour, magnetic field generation, electromagnetic induction, transformer operation, and current-induced magnetic effects. Equipment such as capacitor boxes and adjustable air capacitors support capacitance studies, while coils, solenoids, and electromagnets allow investigation of magnetic fields and inductive behaviour. Demonstration tools like Oersted’s law apparatus and Wimshurst machines provide clear visual understanding of current and electrostatic phenomena, making them suitable for structured teaching and laboratory demonstrations.
For quality and compliance reference, IEC 61010-1 is a current international standard covering safety requirements for electrical equipment used in measurement, control, and laboratory environments, supporting safe operation during experiments. IEC 60252-1 is applicable for AC motor capacitors and provides a recognised reference for capacitor construction and performance principles relevant to educational capacitor demonstrations. IEC 61558-2-6 is also a current standard covering safety of transformers, reactors, power supply units, and similar equipment, which is relevant for transformer-based teaching kits and power modules used in laboratory environments. These standards should be referenced only where supported by the manufacturer’s technical specifications and compliance documentation.
For LabChoice Australia customers, Electromagnetism, Capacitors and Induction products provide reliable, education-focused solutions for teaching electrical and magnetic principles through hands-on experimentation. They support clear concept understanding across school, university, and technical training environments where visual demonstration and practical learning are essential.