3. A cathode-ray tube (CRT) is an evacuated glass tube. Electrons are produced at one end, usuallyby the heating of a metal. After being focused electromagnetically into a beam, they are acceleratedthrough a potential difference, called the accelerating potential. The electrons then strike a coatedscreen, where they transfer their energy to the coating through collisions, causing it to glow. CRTSare found in oscilloscopes and computer monitors, as well as in earlier versions of televisionscreens.(a) If the accelerating potential is 95.0 V, what is the change in the electric potential energy of theelectrons when they accelerated through the potential?(b) If the electrons are accelerated from rest, then what is the kinetic energy of the electrons beforethey strike the coated screen?(c) If the accelerating potential occurs between parallel metal plates separated by 10.0 cm, thenwhat is the initial acceleration of the electrons when they enter this accelerating potential?

The energy required to transport a charge against an electric field is known as electric potential…

A cathode-ray tube (CRT) is an evacuated glass tube. Electrons are produced at one end, usually y the heating of a metal. After being focused electromagnetically into a beam, they are accelerated through a potential difference, called the accelerating potential. The electrons then strike a coated creen, where they transfer their energy to the coating through collisions, causing it to glow. CRTS re found in oscilloscopes and computer monitors, as well as in earlier versions of television creens. a) If the accelerating potential is 95.0 V, what is the change in the electric potential energy of the electrons when they accelerated through the potential? (b) If the electrons are accelerated from rest, then what is the kinetic energy of the electrons before they strike the coated screen? (c) If the accelerating potential occurs between parallel metal plates separated by 10.0 cm, then what is the initial acceleration of the electrons when they enter this accelerating potential?

A cathode-ray tube (CRT) is an evacuated glass tube. Electrons are produced at one end, usually y the heating of a metal. After being focused electromagnetically into a beam, they are accelerated through a potential difference, called the accelerating potential. The electrons then strike a coated creen, where they transfer their energy to the coating through collisions, causing it to glow. CRTS re found in oscilloscopes and computer monitors, as well as in earlier versions of television creens. a) If the accelerating potential is 95.0 V, what is the change in the electric potential energy of the electrons when they accelerated through the potential? (b) If the electrons are accelerated from rest, then what is the kinetic energy of the electrons before they strike the coated screen? (c) If the accelerating potential occurs between parallel metal plates separated by 10.0 cm, then what is the initial acceleration of the electrons when they enter this accelerating potential?

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter12: Electronic Control Devices

Section: Chapter Questions

Problem 14RQ

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