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anonymous

  • 2 years ago

help? 2 questions medal c:!

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  1. anonymous
    • 2 years ago
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    1.A 2000 W toaster operates on a household circuit of 200 V. What is the resistance of the wire the make up the heating element of the toaster?

  2. ksaimouli
    • 2 years ago
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    Resistance = Voltage / Current

  3. anonymous
    • 2 years ago
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    0.1?

  4. ksaimouli
    • 2 years ago
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    Si unit of current is amp but they gave us power

  5. anonymous
    • 2 years ago
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    electric power (watts)=votlage*amperage, amperage=voltage/resistance so 2000W=200V*Amperage (10amp). 10amp=200V/resistance (20)

  6. anonymous
    • 2 years ago
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    20 ohms

  7. ksaimouli
    • 2 years ago
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    \[power=\frac{ V }{ I }\]

  8. ksaimouli
    • 2 years ago
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    solve for V

  9. ksaimouli
    • 2 years ago
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    from above equation

  10. anonymous
    • 2 years ago
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    ty :) @ksaimouli and @SalvadorV kk hold on

  11. anonymous
    • 2 years ago
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    you have the intensity formula wrong

  12. anonymous
    • 2 years ago
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    me?

  13. anonymous
    • 2 years ago
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    sorry the power formula

  14. anonymous
    • 2 years ago
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    P=V*I

  15. anonymous
    • 2 years ago
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    oh so I got it wrong?

  16. anonymous
    • 2 years ago
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    yes, Watts=Volts*Amps Amps=Volts/Ohms

  17. anonymous
    • 2 years ago
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    oh wait im confused .-. sorry

  18. anonymous
    • 2 years ago
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    watts=volts^2/ohms 2000=200^2/ohms ohms=200^2/2000 = 40 000/2000=20 ohms

  19. anonymous
    • 2 years ago
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    don't worry, we all make mistakes

  20. anonymous
    • 2 years ago
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    I feel stupid :l but what is ohms?

  21. ksaimouli
    • 2 years ago
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    resistance (unit)

  22. anonymous
    • 2 years ago
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    ohms is the measure for resistance

  23. anonymous
    • 2 years ago
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    oohh ok! ty for helping me c: do you mind helping with 1 more?

  24. anonymous
    • 2 years ago
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    and ksaimouli has his formula wrong .-.

  25. anonymous
    • 2 years ago
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    sure

  26. anonymous
    • 2 years ago
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    that's why I got confused :c and kk

  27. anonymous
    • 2 years ago
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    2.An electronic device is rated at 0.35 W when connected to 150 V. What is the resistance of this device?

  28. anonymous
    • 2 years ago
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    see, its the same kind of question so \[0.35W=150V*amps\]

  29. anonymous
    • 2 years ago
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    so \[amps=\frac{ 0.35W }{ 150V }\]

  30. anonymous
    • 2 years ago
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    I was just about to put that lol

  31. anonymous
    • 2 years ago
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    ty again :)

  32. anonymous
    • 2 years ago
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    and we know that \[Amps=\frac{ volts }{ ohms }, 0.00233333333=\frac{ 150V }{ Ohms }\]

  33. anonymous
    • 2 years ago
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    remember ohms are the unit for resistance, normally noted with the sign\[\Omega \]

  34. anonymous
    • 2 years ago
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    here we have to substitute for ohms, so we pass them to the left side multiplying, and then we pass the 0.00233333333 dividing the voltage

  35. anonymous
    • 2 years ago
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    so we get \[\Omega=\frac{ 150V }{ 0.00233333333Amp }\]

  36. anonymous
    • 2 years ago
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    got it ! :) so =64285.72

  37. anonymous
    • 2 years ago
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    yea.

  38. anonymous
    • 2 years ago
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    sorry they left u so soon.

  39. anonymous
    • 2 years ago
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    um ok

  40. anonymous
    • 2 years ago
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    wow. nice pic.

  41. anonymous
    • 2 years ago
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    perfect! :D

  42. anonymous
    • 2 years ago
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    wow dude. ur late.

  43. anonymous
    • 2 years ago
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    .-. ok, whatever you say

  44. anonymous
    • 2 years ago
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    I'm actually trying to help people here instead of flirting you know?

  45. anonymous
    • 2 years ago
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    i'm helping finish the work u left unfinished. plus i could get her before u do anyway.

  46. anonymous
    • 2 years ago
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    I don't care about that, I have a girlfriend, plus just hopping in and saying "yes" is not exactly helping much

  47. anonymous
    • 2 years ago
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    i know. but i also know not 2 leave a girl hanging.

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