An electron is accelerated from rest by a total potential difference of 2.00 $\times$ 10⁸ V.Its mass at this energy is A)9.1 $\times$ 10^-31 kg B)2.27 $\times$ 10^-33 kg C)1.67 $\times$ 10^-27 kg D)3.64 $\times$ 10^-28 kg E)1.1 $\times$ 10^-16 kg

Question

Quizplus · Accepted Answer

The relativistic mass of an electron increases with its energy. Using the energy-mass equivalence and the given potential difference, the mass is calculated to be approximately 3.64 × 10^-28 kg.

An Electron Is Accelerated from Rest by a Total Potential ×\times×

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