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Hangzhou Jingke Instrument Co., Ltd.
Add: 39 Golf Road, Fuyang District, Hangzhou City, Zhejiang, China
P. C.: 311402
Tel: +86-571-63323636
Fax: +86-571-63323795
URL : www.guweiou.cn
Product
Product name：FB710 type electron charge-mass ratio tester (three-dimensional demonstration instrument of electronic deflection experiment)
Product Details
☆Helmholtz coils: inner diameter: Φ300mm; outer diameter: Φ320mm; effective radius:R=58mm, turns per soil: N=130T;
☆Accelerating voltage: 0-250V, exciting current:I=0-3.5A digital display continuously adjustable;
☆To measure curvature radius of electron track.
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