What potential difference is needed to give a helium nucleus (Q=3.2×10^−19 C) 120 keV of kinetic...

Question

Question

What potential difference is needed to give a helium nucleus (Q=3.2×10^−19 C) 120 keV of kinetic energy?

science physics

Answer 1

Answer #1

Kinetic energy = potential energy

120keV =QV

$V = \frac{120\times 10^{-3}(1.6\times 10^{-19}C)V}{3.2\times 10^{-19}C}=60\times 10^{-3}V$

Potential difference = 0.06V

Answer 2

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