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The current of electrons hitting the screen of a cathode ray oscilloscope is 2.0 x 10-4A. Determine the number of electrons that strike the screen each second. (take charge of an electrons as 1.6 x 10-19C)

      

The current of electrons hitting the screen of a cathode ray oscilloscope is 2.0 x 10-4A. Determine the number of electrons that strike the screen each second. (take charge of an electrons as 1.6 x 10-19C)

  

Answers


John
Q = It

2 x 10<sup>-4</sup> A x 1 = 2.4 x 10<sup>-4</sup>C

n = $\frac{2\times 10^{-4}}{1.6\times 10^{-19}}$

= 1.25 x 10<sup>15</sup> electrons.
johnmulu answered the question on February 20, 2017 at 06:40


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