Physics 9702 · AS & A Level · Potential difference and power

Potential difference and power — practice question

A charged particle is located in a vacuum between two horizontal metal plates, as illustrated. The particle’s acceleration is $7.15 \times 10^{11}\,\text{m s}^{-2}$ downward. Its mass is $3.34 \times 10^{-27}\,\text{kg}$. Calculate the charge on the particle.

  • A$+1.6 \times 10^{-19}\,\text{C}$
  • B$-1.6 \times 10^{-19}\,\text{C}$
  • C$+1.6 \times 10^{-17}\,\text{C}$
  • D$-1.6 \times 10^{-17}\,\text{C}$

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