Quick Answer: The Horseshoe Magnet, Alnico is a U-shaped aluminium-nickel-cobalt magnet made in 50mm, 75mm and 100mm lengths. It comes with a mild steel keeper and marked north and south poles.
Last updated: October 2026
Key Features
Horseshoe (U-shaped) Alnico alloy magnet
Lengths of 50mm, 75mm or 100mm
Poles stamped N and S and/or colour-coded red/blue or red/white
Mild steel keeper supplied to close the magnetic circuit
Technical Specifications
Specification
Value
Material
Alnico alloy (aluminium, nickel, cobalt)
Shape
U-shaped / horseshoe
Lengths
50mm / 75mm / 100mm
Pole marking
N/S stamped and/or red/blue or red/white
Keeper
Mild steel
HS Code
8505.11
About This Product
With both poles side by side, a horseshoe magnet gives a strong, fairly uniform field in the gap between its arms. It is used for Fleming's left-hand rule and motor-effect demonstrations with a current-carrying wire, and for Lenz's law and induction work. Educational Instrument can arrange export supply of the Horseshoe Magnet, Alnico to Vietnam, Chile, Australia, Gabon and Comoros.
Frequently Asked Questions
How are the poles of the horseshoe magnet identified?
The north and south poles are stamped N and S and/or colour-coded red/blue or red/white.