Tuesday 14 May 2013

Calculate the number of electrons constituting one coulomb of charge



Question 3:
Calculate the number of electrons constituting one coulomb of charge. 
Solution:
We know that the a electron have charge of 1.6 × 10−19 C
∴ e =1.6 × 10−19 C
Total charge required 1Coulomb.
∴ q = 1C
Since q=ne
⇒ n =q/e
⇒ n =  1/1.6 × 10−19
⇒6.25×1018
⇒6×1018 electrons.
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30 comments:

  1. Unknown28 May 2014 at 00:58

    Thanks a lot

    ReplyDelete
  2. pratyush9 August 2015 at 05:44

    hey it is soooo easy

    ReplyDelete
  3. pratyush9 August 2015 at 05:44

    hey it is soooo easy

    ReplyDelete
  4. Unknown12 September 2015 at 23:01

    I want each and every calculation in this question, means how it get multiplied or divided...
    Nevertheless, answer is just OK.. Ok

    ReplyDelete
    Replies
    1. Green Jersey25 January 2018 at 02:36

      1÷1.6=0.625 and then move the 6 left of decimal point, the 10^19 becomes 10^18 and finally we get 6.25×10^18

      Delete
    2. Unknown18 August 2018 at 11:03

      kyu khud ni kr skti tu

      Delete
  5. Unknown24 February 2016 at 10:24

    This comment has been removed by the author.

    ReplyDelete
  6. Unknown24 February 2016 at 10:31

    An electron is negatively charged so the charge on electron is actually −1.6×10^−19 C. Lol...xdxd

    ReplyDelete
  7. Unknown14 March 2016 at 07:55

    so many grammatical mistakes in the answers

    ReplyDelete
  8. Unknown14 March 2016 at 07:57

    so many grammatical mistakes in the answers

    ReplyDelete
  9. Unknown6 April 2016 at 04:05

    plz give multiplications and divisions

    ReplyDelete
  10. Unknown3 September 2016 at 03:12

    Thanks for the solution it helped me a lot. But can it be explained briefly??

    ReplyDelete
  11. Unknown3 September 2016 at 03:13

    Thanks for the solution it helped me a lot. But can it be explained briefly??

    ReplyDelete
  12. nandita10 September 2016 at 01:28

    I want it to be explained briefly so if u can do this it will be a great help

    ReplyDelete
  13. Unknown12 September 2016 at 10:38

    Wow!That is so coooooool.๐Ÿ˜„๐Ÿ˜„๐Ÿ˜„๐Ÿ˜Ž๐Ÿ˜Ž๐Ÿ˜Ž๐Ÿ˜Ž

    ReplyDelete
  14. Unknown17 September 2016 at 10:25

    Ur maths is good but ur English is not ๐Ÿ˜‚

    ReplyDelete
  15. Unknown2 April 2017 at 02:52

    Please give the full calculation

    ReplyDelete
  16. Unknown19 April 2017 at 08:27

    Thanks a lot

    ReplyDelete
  17. Gopesh9 June 2017 at 22:20

    thanks forever

    ReplyDelete
  18. Unknown29 June 2017 at 02:38

    Thx๐Ÿ‘๐Ÿ‘

    ReplyDelete
  19. Anonymous2 September 2017 at 07:03

    This comment has been removed by the author.

    ReplyDelete
  20. Unknown6 November 2017 at 07:40

    What is "n" here?

    ReplyDelete
  21. Unknown14 March 2018 at 10:25

    Answer is 6.25*10^19

    ReplyDelete
    Replies
    1. Unknown28 September 2018 at 20:40

      Are yu n h answer toh n aaye samaj m
      6.25×10^18 h y k answer

      Delete
  22. Unknown13 June 2018 at 10:28

    nice ....and it helps me a lot...ththnxxx๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ

    ReplyDelete
  23. Unknown6 July 2018 at 08:51

    It is helpful to me so thanks

    ReplyDelete
  24. Unknown26 July 2018 at 07:24

    Thanks for the answer

    ReplyDelete
  25. Unknown2 October 2018 at 18:58

    Thank you so much it's too good

    ReplyDelete
  26. Unknown16 July 2019 at 17:57

    How is 1.602×10^-19 6.25×10^18?

    ReplyDelete

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