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

Electrons in a cathode ray tube start from rest and are accelerated through a potential difference of 12.2 kV. They are moving in the +x-direction when they enter the space between the plates of a parallel plate capacitor. There is a potential difference of 338 V between the plates. The plates have length 9.37 cm and are separated by 1.10 cm. The electron beam is deflected in the negative y-direction by the electric field between the plates.

where P = 9.37 and Q = 338.

a) What is the value of Δy, the vertical deflection?

b) Through what potential difference do the electrons move while between the plates?

c) What is the kinetic energy of the electrons as they leave the plates?

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genius_generous answered 2 years ago
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