an electron is released from rest at one point in a uniform electric field and m
ID: 1536083 • Letter: A
Question
an electron is released from rest at one point in a uniform electric field and moves a distance of 10cm in 10^-7s. 3.) An electron is released from rest at point in a uniform electric field and moves a distance one of 10.0 cm in 107 seconds. (A) what is the acceleration of the electron? (Hint use the kinematic equations of motion) points) (B) What is the magnitude of the force acting on the electron? (2 points) (c) What is the strength of the electric field? (5 points) (D) What is the voltage between the two points? (6 points)Explanation / Answer
Given
electtron released from rest inside a uniform electric field so that it covered
10 cm in time t= 10^-7 seconds
1)
using equations of motion
s = ut+0.5at^2
0.1 = 0+0.5*a*(10^-7)^2
a = 2*20^13 m/s2
2) F = ma , F = 9.109*10^-31*2*20^13 N
F = 1.49241856*10^-13 N
3) F = E*Q
E = F/Q
E = 1.49241856*10^-13 /(1.6*10^-19) N/C
E = 932761.6 N/C
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