A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
In the circuit shown, a voltage drop of 6.6 V wil occur across which of the following resistors?
A. R_1
B. R_2
C. R_3
D. R_4
anonymous
 one year ago
In the circuit shown, a voltage drop of 6.6 V wil occur across which of the following resistors? A. R_1 B. R_2 C. R_3 D. R_4

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433877050526:dw

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1here we have to compute the total or equivalent resistance

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1the equivalent resistance is given by the subsequent formula: \[\Large {R_{EQ}} = 8.5 + 3.2 + \frac{1}{{\frac{1}{{13}} + \frac{1}{{18}}}} = ...\Omega \]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1ok! we can assume R_eq=19.25 ohms

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1so the total current is: I=15/19.24=...amperes

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1ok! I=0.779 amperes. Now the voltage drop of resistor R_1 is: V_1=8.5*0.779=...volts

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1ok! maybe it is the right answer the voltage drop of resistor #4, is: V_4=3.2*0.779=...volts

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1now the voltage drop V_AB is: 15(6.6215+2.4928)=...volts dw:1433877631686:dw

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1ok! so what is the right option?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0becuase it it closest to 5.8? i am a bit confused:/

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1we are searching for a 6.6 voltage drop

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohhh ok! so it should be R_3?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1no, since V_AB=5.8857

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1what is the voltage drop of R_1?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh! it is 6.62! ohhhh so it would be R_1 ? :O

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1yes! that's right!! :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh okie! yay!! Thank you!!:D
Ask your own question
Sign UpFind more explanations on OpenStudy
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
 Engagement 19 Mad Hatter
 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.