If an Electron Is Accelerated from Rest Through a Potential

question 71

Multiple Choice

If an electron is accelerated from rest through a potential difference of 300 V, find its approximate speed at the end of this process. (e = 1.6 * 10 ^{- 19} C; m_e = 9.1 *10 ^{- 31} kg)

• A) 2.5 * 10⁷ m/s
• B) 2.1 * 10⁷ m/s
• C) 1.0 *10⁷ m/s
• D) 1.4 * 10⁷ m/s

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