Question: Find the speed of an electron accelerated through a voltage of 25.0 kV-ignoring relativity. Express your answer as a fraction times the speed of light.

Find the speed of an electron accelerated through a voltage of 25.0 kV-ignoring relativity. Express your answer as a fraction times the speed of light. (Speeds over about 0.1c are generally regarded as relativistic.)

a. 0.221c

b. 0.281c

c. 0.312c

d. 0.781c

Figure 29-36: A cathode-ray tube.

Cathode and Control. Horizontal and vertical heating coil grid deflection plates Electron beam Accelerating and focusing anodes Physics Vacuum Fluorescent screen

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