Anelectron gun with its collector at a potential of 100 V fires outelectrons in a spherical bulb containing hydrogen gas at low pressure(∼10−2mm of Hg). A magnetic field of 2.83 × 10−4T curves the path of the electrons in a circular orbit of radius 12.0cm. (The path can be viewed because the gas ions in the path focusthe beam by attracting electrons, and emitting light by electroncapture; this method is known as the ‘fine beam tube’method. Determine e/mfrom the data.

Anelectron gun with its collector at a potential of 100 V fires outele

1.	Anelectron gun with its collector at a potential of 100 V fires outelectrons in a spherical bulb containing hydrogen gas at low pressure(∼10−2mm of Hg). A magnetic field of 2.83 × 10−4T curves the path of the electrons in a circular orbit of radius 12.0cm. (The path can be viewed because the gas ions in the path focusthe beam by attracting electrons, and emitting light by electroncapture; this method is known as the ‘fine beam tube’method. Determine e/mfrom the data.
Answer» An electron gun with its collector at a potential of 100 V fires out electrons in a spherical bulb containing hydrogen gas at low pressure (∼10⁻² mm of Hg). A magnetic field of 2.83 × 10⁻⁴ T curves the path of the electrons in a circular orbit of radius 12.0 cm. (The path can be viewed because the gas ions in the path focus the beam by attracting electrons, and emitting light by electron capture; this method is known as the ‘fine beam tube’ method. Determine e/m from the data.

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