QCEVault

Electromagnetism — Question 167

Original QCE Vault practice · 5 marks

Q167 · Practice questionComplex familiar5 marks

QUESTION 167 (5 marks)

A proton starts from rest at electric potential +200 V+200\,\mathrm V and moves to a point at −300 V-300\,\mathrm V. Only the electric force does work. Use q=+1.60×10−19 Cq=+1.60\times10^{-19}\,\mathrm C and m=1.6726219×10−27 kgm=1.6726219\times10^{-27}\,\mathrm{kg}.
a)
Determine the change in electric potential energy of the proton.
[2 marks]
b)
Determine the work done by the electric field and the final speed of the proton.
[3 marks]
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