A particle having a charge of 20 electrons on it, falls through a potential difference of 100 volts. Calculate the energy acquired by it in electron volts (eV).
Correct answer: D. 2.0 x 10^3 eV
- A. 2.0 x 10^-2 eV
- B. 2.0 x 10^-3 eV
- C. 2.0 x 10^2 eV
- D. 2.0 x 10^3 eV
Explanation
Energy (in eV) = Charge (in electron charges) × Potential difference (in volts)Given that the charge of the particle is 20 electrons and the potential difference is 100 volts, we can substitute these values into the equation:Energy = 20 electrons × 100 voltsNow let's calculate the energy:Energy = 2000 eVTherefore, the correct option is 2.0 x 103 eV. This represents 2000 electron volts, which is the energy acquired by the particle when falling through a potential difference of 100 volts.
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