Electrons in a cathode ray tube start from rest and are accelerated through a potential difference...

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Physics

Electrons in a cathode ray tube start from rest and areaccelerated through a potential difference of 11.6 kV. They aremoving in the +x-direction when they enter the spacebetween the plates of a parallel plate capacitor. There is apotential difference of 320 V between the plates. The plates havelength 8.93 cm and are separated by 1.10 cm. The electron beam isdeflected in the negative y-direction by the electricfield between the plates.
Â Â
where P = 8.93 and Q = 320.
What is the value of Î”y, the vertical deflection?
Through what potential difference do the electrons move whilebetween the plates?
What is the kinetic energy of the electrons as they leave theplates?

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4.5 Ratings (822 Votes)

Initially electron is accelerated by 11 6 kVHence energy gained by electron 116 keV 116 1000 16 1019kinetic energy of electron 1856 1015 J 1velocity of electron in xdirection is obtained from12mvx2 1856 1015where m 91 See Answer

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