3. In old TVs, an electron gun accelerates electrons between two parallel plates 1.2cm apart using a 25kV potential difference. a. What is the electric field magnitude between the plates? b. If the electrons start at the negative plate at rest, with what speed will they hit the positive plate? (Note: this speed will be a significant fraction of the speed of light)
3. In old TVs, an electron gun accelerates electrons between two parallel plates 1.2cm apart using a 25kV potential difference. a. What is the electric field magnitude between the plates? b. If the electrons start at the negative plate at rest, with what speed will they hit the positive plate? (Note: this speed will be a significant fraction of the speed of light)
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Transcribed Image Text:3.
In old TVs, an electron gun accelerates electrons between two
parallel plates 1.2cm apart using a 25kV potential difference.
a. What is the electric field magnitude between the plates?
b. If the electrons start at the negative plate at rest, with what speed
will they hit the positive plate? (Note: this speed will be a
significant fraction of the speed of light)
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