Axial Search Coil

The Axial Search Coil is a precision‑engineered physics accessory designed for investigating magnetic fields and electromagnetic induction in educational laboratories. It is particularly well suited to quantitative studies of field strength and magnetic flux density within magnets, solenoids, and electromagnets.

The search coil consists of 5,000 turns of very fine copper wire wound onto a bobbin and securely mounted at one end of a fibreglass board. The fibreglass support is electrically insulated and non‑magnetic, ensuring that measurements are not influenced by the mounting material. At the opposite end, the board is fitted with two 4mm socket terminals for straightforward connection to standard laboratory equipment.

In the axial configuration, the coil axis is aligned parallel to the axis of the PCB board. This orientation allows students to measure and compare the axial component of a magnetic field, making it ideal for detailed field mapping and induction experiments. Both AC and DC signals can be applied to study interacting magnetic fields and induced voltages.

Key Features

• Axial search coil for magnetic field investigations
• 5,000 turns of fine copper wire
• Mounted on non‑magnetic, electrically insulated fibreglass
• Fitted with two 4mm socket terminals
• Suitable for AC and DC experiments
• Designed for accurate measurement of field strength and flux density
• Robust construction for repeated classroom use

Ideal for School Physics Lessons

Ideal for GCSE and A‑Level physics, the Axial Search Coil enables students to carry out hands‑on investigations into magnetism and electromagnetic induction. Its clear geometry and reliable construction make it especially effective for structured practical work and quantitative analysis.

• Measuring magnetic field strength inside solenoids
• Investigating magnetic flux density in magnet air gaps
• Studying electromagnetic induction
• Comparing axial field components
• Supporting exam‑relevant practical physics investigations

Accurate, durable, and curriculum‑aligned, the Axial Search Coil is an essential accessory for teaching modern electromagnetism and developing strong experimental skills in school and college physics laboratories.