Electrostatics Question 393

Question: How much kinetic energy will be gained by an α− particle in going from a point at 70V to another point at 50V [RPET 1997]

Options:

A) 40eV

B) 40keV

C) 40MeV

D) 0eV

Show Answer

Answer:

Correct Answer: A

Solution:

KE=q(V1−V2)=2×1.6×10−19×(70−50)=40eV

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