Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971
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Helmholtz Coil

A Helmholtz coil is a device for producing a region of nearly uniform magnetic field and is named after the German physicist Hermann von Helmholtz.

Helmholtz Coil (Wikipedia)
A Helmholtz coil
Helmholtz coil schematic drawing

A Helmholtz coil is a device for producing a region of nearly uniform magnetic field, named after the German physicist Hermann von Helmholtz. It consists of two electromagnets on the same axis. Besides creating magnetic fields, Helmholtz coils are also used in scientific apparatus to cancel external magnetic fields, such as the Earth's magnetic field.

A beam of cathode rays in a vacuum tube bent into a circle by a Helmholtz coil
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