An electron at rest is accelerated through a potential difference of 200 V. If the specific charge o — Atomic Structure Chemistry Question
Question
An electron at rest is accelerated through a potential difference of 200 V. If the specific charge of electron is 1.76 × 10^11 C/kg, the speed acquired by the electron is about
Answer: B
💡 Solution & Explanation
v = √(2 × (e/m) × V) = √(2 × 1.76 × 10^11 × 200) = √(7.04 × 10^13) ≈ 8.4 × 10^6 m/s.
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