Exam-style question
Try this first
What is the specific charge of an electron?.
- A.1.6 x 10^-19 C/kg
- B.9.1 x 10^-31 C/kg
- C.1.6 x 10^-19 C
- D.9.1 x 10^-31 kg
Model answer
What a good answer should say
- 1.6 x 10^-19 C/kg
Explanation
Why this works
The specific charge of an electron is defined as the charge of the electron divided by its mass. The charge of an electron is approximately 1.6 x 10^-19 C and its mass is approximately 9.1 x 10^-31 kg, leading to a specific charge of 1.6 x 10^-19 C/kg.
Common mistake
No common mistake is linked to this question yet.