An Electron in a Cathode Ray Tube Is Accelerated Through

question 45

Multiple Choice

An electron in a cathode ray tube is accelerated through a potential difference of 7.0 kV.What kinetic energy does the electron gain in the process? (e = 1.6 × 10−¹⁹ C)

• A) 7.84 × 10−¹⁶ J
• B) 11.2 × 10−¹⁶ J
• C) 7.84 × 10−²² J
• D) 12.2 × 10²² J
• E) 11.2 × 10−²² J

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