Through What Potential Difference Would an Electron Initially at Rest

question 4

Multiple Choice

Through what potential difference would an electron initially at rest need to be accelerated to have its total energy be double its rest energy? (m_e = 9.11 x 10^-31 kg,c = 3.00 x 10⁸ m/s,and q_e = 1.6 x 10^-19 C)

• A)1.6 x 10^-19 V
• B)2.6 x 10⁵ V
• C)5.1 x 10⁵ V
• D)1.0 x 10⁶ V

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