What is specific charge ? Write its standard value.
What is specific charge ? Write its standard value.
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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 $(\sim 10^{-2} \;mm$ of $Hg$ . A magnetic field of $2.83 \times 10^{-4}\; T$ curves the path of the electrons in a circular orbit of radius $12.0 \;cm .$ (The path can be viewed because the gas tons 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.
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 $(\sim 10^{-2} \;mm$ of $Hg$ . A magnetic field of $2.83 \times 10^{-4}\; T$ curves the path of the electrons in a circular orbit of radius $12.0 \;cm .$ (The path can be viewed because the gas tons 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.
The charge on electron was discovered by
The charge on electron was discovered by
Explain emission of electron from metal. Define work function. Write its unit, work function of metal depend on which factors ?
Explain emission of electron from metal. Define work function. Write its unit, work function of metal depend on which factors ?
Cathode rays enter into a uniform magnetic field perpendicular to the direction of the field. In the magnetic field their path will be
Cathode rays enter into a uniform magnetic field perpendicular to the direction of the field. In the magnetic field their path will be
An electron is moving in electric field and magnetic field it will gain energy from
An electron is moving in electric field and magnetic field it will gain energy from