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Post-UTME Physics 2016 Objective — Question 12

Question 12 of 20 from the Post-UTME Screening (Post-UTME) Physics 2016 Objective paper, with the correct answer and a full explanation.

Calculate the force on an electron situated in a uniform electric field of intensity 120 000Vm-1

A. 2.25 x 10^-11N
B. 3.61 x 10^-10N
C. 1.92 x 10^-14NCorrect
D. 3.75 x 10^-14N

Explanation

F = qE = 1.6x10^-19 x 120000 = 1.92x10^-14N.

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