An Electron Is Released from Rest at the Negative Plate

question 42

Multiple Choice

An electron is released from rest at the negative plate of a parallel-plate capacitor.If the distance across the plate is 5.0 mm and the potential difference across the plate is 5.0 V,with what velocity does the electron hit the positive plate? (m_e = 9.1 x 10^-31 kg,e = 1.6 x 10^-19 C)

• A)2.6 x 10⁵ m/s
• B)5.3 x 10⁶ m/s
• C)1.0 x 10⁶ m/s
• D)1.3 x 10⁶ m/s

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