An Electron Is Released from Rest at the Negative Plate

question 45

Multiple Choice

An electron is released from rest at the negative plate of a parallel-plate capacitor.If the distance across the plate is 2.0 mm and the potential difference across the plate is 6.0 V,with what velocity does the electron hit the positive plate? (m_e = 9.1 × 10−³¹ kg,e = 1.6 × 10−¹⁹ C)

• A)2.1E+5 m/s
• B)1.5E+12 m/s
• C)5.3E+5 m/s
• D)1.5E+6 m/s
• E)2.1E+6 m/s

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