China Wholesale Helmholtz Coil Pricelist – LEEM-5 Apparatus of Work Function & Specific Charge of Electron – Labor

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China Wholesale Helmholtz Coil Pricelist – LEEM-5 Apparatus of Work Function & Specific Charge of Electron – Labor Detail:

Description

Thermionic emission, one of its founders was Owen W. Richardson (1879～1959), a famous physicist in England, who discovered the thermionic emission law, namely Richardson law, pointing out the way for designing reasonable electron emission mechanism. His study had a profound impact on development of radio electronics, and won the 1928 Nobel Prize in Physics as a result.

Functions

1. Understand the concept of thermionic electron emission and verify the Schottky effect

2. Understand the concept of work function of a metal

3. Learn how to measure metal work function based on Richardson straight-line method

4. Understand magnetron principle and determine charge-mass ratio (e/m) by magnetron

Specifications

Description	Specifications
Ideal diode	pure Tungsten filament
	filament current: 0.400 ~ 0.800 A; accuracy: 1.0 mA
	anode voltage: DC 0 ~120 V; accuracy: 0.1 V
Parameters of coil	inner radius: r₁=24.0 mm
	outer radius: r₂=36.0 mm
	length: L=18.0 mm
	number of turns: N=800
Magnetization current	0 ~ 0.800 A

Parts List

Item	Qty
Main unit	1
Ideal diode	1
Housing	1
Magnetization coil	1
Wires	8
Manual	1

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The corporate keeps towards the operation concept "scientific administration, superior quality and performance primacy, client supreme for China Wholesale Helmholtz Coil Pricelist – LEEM-5 Apparatus of Work Function & Specific Charge of Electron – Labor , The product will supply to all over the world, such as: El Salvador, Australia, Manchester, Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs. We welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!

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