A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

In this circuit, which resistor will draw the least power? will draw inside!! A. R_1 B. R_2 C. R_3 D. the power will be the same for each resistor

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1433868602092:dw|

  2. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    here the current is: I=12/(2.2+1.1+2.7)=...amperes

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    2!

  4. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    ok!

  5. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    now the power dissipated by R_1 is: P_1= R_1 * I^2= 2.2* 4=...

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    8.8!

  7. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    ok! the power dissipated by R_2, is: P_2= R_2 I^2 = 1.1* 4=...watts

  8. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    4.4!

  9. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    ok! finally the power dissipated by R_3, is: P_3 = R_e*I^2 = 2.7*4=...watts

  10. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    oops.. P_3= R_3* I^2

  11. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    10.8!

  12. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    ok! reassuming, we have these dissipated powers: P_1=8.8 watts, P_2=4.4 watts P_3=10.8 watts which is the littlest value among them?

  13. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    P2! so is choice B our solution?

  14. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    correct!

  15. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yay!! thanks!:)

  16. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 3

    :)

  17. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.