Exam-style question
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What is the relationship between the charge-to-mass ratio and the specific charge of an electron?.
- A.They are inversely proportional
- B.They are equal
- C.They are directly proportional
- D.They are unrelated
Model answer
What a good answer should say
- They are equal
Explanation
Why this works
The charge-to-mass ratio of an electron is defined as the specific charge, which is the charge of the electron divided by its mass. Therefore, they are equal, and this relationship is fundamental in understanding the properties of electrons.
Common mistake
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