Exam-style question
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A particle has a specific charge of 1.76 x 10^11 C/kg. If its mass is 2 x 10^-27 kg, what is its charge?.
- A.3.52 x 10^-16 C
- B.3.52 x 10^-17 C
- C.3.52 x 10^-15 C
- D.3.52 x 10^-14 C
Model answer
What a good answer should say
- 3.52 x 10^-16 C
Explanation
Why this works
Specific charge is defined as charge per unit mass. To find the charge (Q), we use the formula Q = specific charge × mass.
Substituting the values: Q = (1.76 x 10^11 C/kg)(2 x 10^-27 kg) = 3.52 x 10^-16 C.
Common mistake
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