WAEC Physics 2011 Theory — Question 12
Question 12 of 39 from the West African Examinations Council (WAEC) Physics 2011 Theory paper, with the correct answer and a full explanation.
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8. An electron of charge 1.60x10⁻¹⁹ C is accelerated under a potential difference of 1.0x10^5 V. Calculate the energy of the electron in joules.
Model answer
Energy of the electron, E = qV = 1.6x10⁻¹⁹ x 1x10^5 = 1.6x10⁻¹⁴ J.
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