Experiment: Fine-Beam Tube (115 V, 50/60 Hz)

Experiment: Fine-Beam Tube (115 V, 50/60 Hz), 8000667 [UE3070700-115], Electron tubes
Thematic focus: ..
• Demonstrate the deflection of electrons in a uniform magnetic field into a closed circular path
• Determine the Helmholtz current IH as a function of the accelerating voltage of the electron gun U for a constant path radius r.
• Determine the specific charge of an electron e/m from the measurements

Experiment description: ..
Electrons in a fine-beam tube are deflected into a circular path by a uniform magnetic field. The tube contains neon gas at a precisely defined pressure so that gas atoms become ionised by collision with electrons along the path thus causing them to emit light. This means the path of the electrons can be viewed directly and the radius of the curvature can simply be measured with a ruler. Since the accelerating voltage of the electron gun U and the magnetic field strength B are both known, the radius of the path r can be used to determine the specific charge of an electron e/m.

组件

细光束管,安装在连接座R上, 1024633, 电子管D

细光束管,安装在连接座R上

1024633
一对赫尔姆霍茨线圈, 1000906 [U8481500], 感应现象

一对赫尔姆霍茨线圈

1000906 [U8481500]
电压电源0-500 V (115 V, 50/60 Hz), 1003307 [U33000-115], 供电器

电压电源0-500 V (115 V, 50/60 Hz)

1003307 [U33000-115]
模拟万用表 ESCOLA 100, 1013527 [U8557380], 手持模拟测量仪器

模拟万用表 ESCOLA 100

1013527 [U8557380]
15根安全实验导线套件，75mm, 1002843 [U138021], 电循环

15根安全实验导线套件，75mm

1002843 [U138021]
产品编号: 8000667 [UE3070700-115]