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Electron Volt

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What is the speed of a 300-eV proton? What is the speed of a 300-eV electron?

Key: 2.40x10^5, 1.03x10^7

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https://brainmass.com/physics/electricity-magnetism/electron-volt-32479

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Assume that E = (1/2)mv^2 (meaning no relativistic effects)

v = (2E/m)^(1/2)

so then ...

Solution Summary

The solution provides step-by-step calculations for solving the speed of an electron and a proton.

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The drift velocity and Hall voltage.

The number density of free electrons in copper is 8.47 x 10 ^22 electrons per cubic centimeter. If a metal strip of copper 2 cm by 0.1 cm (thickness), magnetic field pointing up to top of paper, and a current og 10A, fins a) the drift velocity Vsubd and b) the Hall voltage (Assume the magnetic field is 2.0 T.)

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