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OpenStudy (anonymous):
The electronic device that uses electrons to produce an image on a screen is called a (an) a. amplifier b. cathode-ray tube c. rectifier d. transistor
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OpenStudy (stormfire1):
b
OpenStudy (anonymous):
okay and u sure suree??:)
OpenStudy (anonymous):
b. cathode-ray tube
OpenStudy (stormfire1):
100%. An amplifier increases a signal...a rectifier turns AC into DC and a transistor is basically a high-speed switch (which could also be used as an amplifier)
OpenStudy (stormfire1):
And CRTs are what those old computer screens were...they were so big because of the electron gun.
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