Physics 9702 · AS & A Level · Fundamental particles

Fundamental particles — practice question

What charge, expressed in terms of the elementary charge $e$, does a charm quark carry?

  • A$-\frac{2}{3}e$
  • B$-\frac{1}{3}e$
  • C$+\frac{1}{3}e$
  • D$+\frac{2}{3}e$

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