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electonics quiz. cant figure this out can you guys help

Discussion in 'Electronics Homework Help' started by dead civic, May 10, 2012.

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  1. dead civic

    dead civic

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    May 10, 2012
    [​IMG]

    can you guys help me solve this problem
     
  2. KJ6EAD

    KJ6EAD

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    Aug 13, 2011
    No, because you have to do your own homework to learn.
     
  3. dead civic

    dead civic

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    May 10, 2012
    well another way of learning seeing a problem solved. and finding were the mistake was made. but thanks for your respond anyways.
     
  4. davenn

    davenn Moderator

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    Sep 5, 2009
    ok have moved this thread to the appropriate forum section

    Hi Dead Civic
    welcome to the forums :)

    do you know Ohms Law ? That is the arrangement of V I and R in the triangle ?
    if so use that to solve the current flow in the first question

    Dave
     
    Last edited: May 10, 2012
  5. dead civic

    dead civic

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    May 10, 2012
    thanks. yeah I'm familiar with it. just cant figure out the formula
     
  6. davenn

    davenn Moderator

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    Sep 5, 2009
    OK so V = I x R

    now rearrange that so you can find out what I will equal :)

    remember the triangle V is at the top with I and R below

    with that in mind cover the one you are trying to find and see the relationship of the other two

    as a hint cover V at the top and you are left with I x R on the bottom
    so what happens if you cover I ?


    Dave
     
    Last edited: May 10, 2012
  7. davenn

    davenn Moderator

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    Sep 5, 2009
    how are you going did you see what you had when you covered I in the triangle ?


    D
     
  8. dead civic

    dead civic

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    May 10, 2012
    no luck mate.
     
  9. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,497
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    Jan 21, 2010
    dead civic, perhaps you can tell us why you need to solve these problems.

    Are you the parent of a student or something? It's almost impossible to believe that you could be a student trying to answer the questions because I would expect a glimmer of understanding by this point.

    Do you know what a milliamp is compared to an amp?

    Do you know what a kiloohm is in relation to an ohm?

    Do you know the units used to measure voltage?

    Do you know the units used to measure current?

    Do you know the units used to measure resistance?

    At the very least you need to know the answers to the previous 5 questions before you can even consider attempting this question.
     
  10. davenn

    davenn Moderator

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    1,952
    Sep 5, 2009
    lets wait for his response before I post anything else
    I had lost my i-net connection for the last hour
    now time to go home yipeee

    Dave
     
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