CBSE Class 10 Answered
Q no 90
![question image](https://images.topperlearning.com/topper/new-ate/1413766342153295201901291311481.jpg)
Asked by aryang9020 | 29 Jan, 2019, 01:19: PM
i = 4.8 A
n is number of electrons flowing through cross section per second
n = n x 1019
e = 1.6 x 10-19 C
t = 1 s
We know,
![i italic space italic equals italic space fraction numerator n italic space e over denominator t end fraction
italic 4 italic. italic 8 italic space italic equals italic space fraction numerator n italic space italic cross times italic space italic 10 to the power of italic 19 italic space italic cross times italic space italic 1 italic. italic 6 italic space italic cross times italic 10 to the power of italic minus italic space italic 19 end exponent over denominator italic 1 end fraction
italic rightwards double arrow italic space n italic space italic equals italic space fraction numerator italic 4 italic. italic 8 over denominator italic 1 italic. italic 6 end fraction italic space italic equals italic space italic 3](https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=c7618df648089cb2c779c2cd8eb9b4fc.png&d=0)
Answered by Shiwani Sawant | 29 Jan, 2019, 06:28: PM
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