If A $\mathrm { Cu } ^ { 2 + }$

question 42

Multiple Choice

If a $\mathrm { Cu } ^ { 2 + }$ ion that is initially at rest accelerates through a potential difference of $12 \mathrm {~V}$ without friction, how much kinetic energy will it gain? $\left( e = 1.60 \times 10 ^ { - 19 } \mathrm { C } \right)$

• A) \(12 \mathrm { eV }\).
• B) \(3.0 \mathrm { eV }\).
• C) \(6.0 \mathrm { eV }\).
• D) \(24 \mathrm { eV }\).

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