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anonymous

  • one year ago

A current of 0.2 A flows through a wire whose ends are at a p.d of 15V Find resistance heat produced in 1 min

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  1. anonymous
    • one year ago
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    @Michele_Liano

  2. Michele_Laino
    • one year ago
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    we have to apply the Ohm's law, so the requested resistance R is: \[\Large R = \frac{V}{I} = \frac{{15}}{{0.2}} = ...ohms\]

  3. rvc
    • one year ago
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    Yes V = IR

  4. anonymous
    • one year ago
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    75?

  5. Michele_Laino
    • one year ago
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    correct!

  6. rvc
    • one year ago
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    Yep all the best

  7. Michele_Laino
    • one year ago
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    the heat energy E produced, is given by the subsequent formula: \[\Large E = VI\Delta t = 15 \times 0.2 \times 1 \times 60 = ...Joules\]

  8. anonymous
    • one year ago
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    180J

  9. Michele_Laino
    • one year ago
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    that's right!

  10. rvc
    • one year ago
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    yay

  11. anonymous
    • one year ago
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    Thanks for all the help.

  12. Michele_Laino
    • one year ago
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    :) @rvc

  13. Michele_Laino
    • one year ago
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    thanks! @BlackDranzer

  14. anonymous
    • one year ago
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    :) @Michele_Laino

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