Exam-style question
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What is the specific charge of an electron?.
- A.1.6 x 10^-19 C/kg
- B.9.11 x 10^-31 C/kg
- C.1.76 x 10^11 C/kg
- D.3.2 x 10^-19 C/kg
Model answer
What a good answer should say
- 1.76 x 10^11 C/kg
Explanation
Why this works
The specific charge of an electron is defined as the charge of the electron divided by its mass. This value is approximately 1.76 x 10^11 C/kg, indicating how much charge is present per unit mass of the electron.
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