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ololo11 [35]
3 years ago
12

The current in the electron beam of a typical video display terminal is 200 µa. How many electrons strike the screen each minute

?
Physics
1 answer:
noname [10]3 years ago
3 0

The number of electrons strike the screen each minute when thee current in the electron beam of a typical video display terminal is 200 µa is 7.5×10¹⁶.

<h3>How to calculate electric charge?</h3>

Electric charge is equal to the product of electricity current flowing and the total time. It can be given as,

q=It

Here, I is current and t is time.

The current in the electron beam of a typical video display terminal is 200 µa for one minute. Thus, the total charge is,

q=200\times10^{-6}\text{ A}\times(60\text{ s})\\q=0.012\rm \;C

The number of electron flow is the ratio of total charge to the charge of one electron. The charge on one electron is 1.6×10⁻¹⁹ C. Thus, the number of electron is,

n=\dfrac{0.012}{1.6\times10^{-19}}\\n=7.5\times10^{16}

Thus, the number of electrons strike the screen each minute when the current in the electron beam of a typical video display terminal is 200 µa is 7.5×10¹⁶.

Learn more about the electric charge here;

brainly.com/question/2373424

#SPJ4

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