"How do You find the Speed of an..." was answered by our experts

klupko5HR

Answered question

2022-11-26

How do You find the Speed of an Electron?

Jimmy Sandoval

Beginner2022-11-27Added 9 answers

To find the speed of an electron:
Electron, proton, and neutron make up an atom. The electron is one the subatomic particle having mass

9 \times 10^{- 31} kg .

Every moving object has kinetic energy which is equal to

1 / 2 {mv}^{2}

, here

m = mass of the object and v = velocity

. The equation is in electromagnetics,

qV = 1 / 2 {mv}^{2}, where m = 9 \times 10^{- 31} kg and q = the charge of a single electron (1.6 \times 10^{- 19} C)

Speed of electron

V = 1 / 2 {mqv}^{2}

For example, Find the speed of electron when

V = 100

?Step 1:

v = 2 q V / m

Step 2: Given:

m = 9 \times 10^{- 31} kg

q = 1.6 \times 10^{- 19} C

v = 100

v = 2 q V / m v = 2 \times 1.6 \times 10^{- 19} \times 100 / 9 \times 10^{- 31} v = 6 \times 10^{6} m / s

Thus, the speed of electron is calculated by

v = 2 q V / m

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