Tuesday 9 April 2013

2.10 describe how current varies with voltage in wires, resistors, metal filament lamps and diodes, and how this can be investigated experimentally

If you increase the resistance the current will decrease. resistors, metal filament lamps and diodes all create resistance in a circuit and so will decrease the current.
This can be investigated using an ammeter and measuring the current with and without these components, or with different voltage levels (measured by voltmeter.)
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47 comments:

  1. aliceinwonderland1531 August 2013 at 03:46

    wut

    ReplyDelete
  2. Kalam Dhesi25 October 2014 at 06:20

    Do you need to know how to be able to draw these graphs and if so how?

    ReplyDelete
    Replies
    1. Anonymous17 October 2016 at 06:48

      yes you should know four important graphs for:

      -Metal Filament Lamp
      -Wire
      -Different resistors (couple of resistors on and graph)
      -Diode

      Look online for these graphs or in a text book

      Delete
  3. Anonymous23 December 2014 at 06:04

    wut

    ReplyDelete
  4. Unknown23 December 2014 at 06:06

    wait wut?

    ReplyDelete
  5. Anonymous23 December 2014 at 06:10

    huh?

    ReplyDelete
  6. HannahHelp26 December 2014 at 11:37

    I can't tell if anyone is asking an actual question or just exclaiming at Yungs comment haha so if you are confused by this post please ask a full question

    ReplyDelete
  7. Lala30 January 2015 at 10:55

    This comment has been removed by the author.

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  8. Anonymous14 March 2015 at 14:13

    This comment has been removed by the author.

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  9. Unknown4 May 2015 at 03:22

    This comment has been removed by the author.

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  10. Shinji14 May 2015 at 12:41

    I love you Hannah.

    ReplyDelete
  11. 1234mx22 March 2016 at 11:57

    Don't we need to have graphs for this? There are a few on BBC Bitesize, but they don't have a wire one. Could you add some graphs to this post (voltage/current)

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    Replies
    1. Owen Davies [Sound Design 2020]29 March 2016 at 03:31

      This comment has been removed by the author.

      Delete
    2. Owen Davies [Sound Design 2020]29 March 2016 at 03:42

      The graph for a wire is directly proportional (i.e. a straight diagonal line through the origin) as the current is proportional to the voltage.

      Delete
  12. Unknown29 March 2016 at 06:43

    What about voltage in wires?

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  13. Unknown7 April 2016 at 11:00

    a

    ReplyDelete
  14. Unknown7 April 2016 at 11:01

    a

    ReplyDelete
  15. Unknown7 April 2016 at 11:01

    a

    ReplyDelete
  16. Unknown7 April 2016 at 11:01

    a

    ReplyDelete
  17. Unknown7 April 2016 at 11:01

    a

    ReplyDelete
  18. Unknown7 April 2016 at 11:02

    a

    ReplyDelete
  19. Unknown7 April 2016 at 11:02

    a

    ReplyDelete
  20. Unknown7 April 2016 at 11:02

    a

    ReplyDelete
  21. Anonymous21 April 2016 at 01:42

    i feel like this would have been better if you included the actual steps to find the resistance of a wire to prove ohms law and the graphs for the filament bulb and diode and well as different uses and properties for diodes,resistors,variable resistors etc. nevertheless i still use these as revision guides so thank you!!

    ReplyDelete
  22. Unknown25 May 2016 at 01:32

    This comment has been removed by the author.

    ReplyDelete
  23. Anonymous1 June 2016 at 04:11

    do wires increase or decrease resistance?

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    Replies
    1. Unknown26 December 2016 at 13:44

      they do neither, they just carry resistance

      Delete
    2. Vivek2 June 2018 at 08:03

      this is not strictly true as resistance cannot be 'carried', however the resistance offered by wires is negligible

      Delete
  24. Unknown13 November 2016 at 19:21

    wut

    ReplyDelete
  25. Unknown26 December 2016 at 13:43

    wut

    ReplyDelete
  26. Joao13 April 2017 at 10:08

    wut????

    ReplyDelete
  27. Joao13 April 2017 at 10:10

    You forgot to add wires as a component that generated resistance

    ReplyDelete
  28. Anonymous24 April 2017 at 02:38

    wut

    ReplyDelete
  29. Anonymous24 April 2017 at 02:38

    Jokes this is really helpful thank you :)

    ReplyDelete
  30. Unknown20 May 2017 at 10:08

    Wut

    ReplyDelete
  31. Unknown20 May 2017 at 10:51

    Your discount coupon isn't working ;-; but still thanks I love love this website XD

    ReplyDelete
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  33. Anonymous26 January 2018 at 02:10

    wth..?

    ReplyDelete
  34. Unknown11 April 2018 at 14:49

    yal niggas wierd

    ReplyDelete
  35. Anonymous16 November 2018 at 06:17

    what is the relationship between voltage and diodes

    ReplyDelete
  36. Eve18 May 2019 at 04:17

    Everyone chill :)

    ReplyDelete
  37. Unknown25 May 2019 at 03:09

    This comment has been removed by the author.

    ReplyDelete
  38. Unknown25 May 2019 at 03:09

    This comment has been removed by the author. lol

    ReplyDelete
  39. Unknown25 January 2021 at 04:26

    That's helpful, thanks

    ReplyDelete

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