A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
In the circuit shown, the greatest voltage drop will occur across which of the following resistors?
R1, R2, R3, or R4 ?
anonymous
 one year ago
In the circuit shown, the greatest voltage drop will occur across which of the following resistors? R1, R2, R3, or R4 ?

This Question is Closed

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2at the first step the equivalent circuit is: dw:1434309387712:dw where R_0 is such that: \[\Large {R_0} = \frac{1}{{\frac{1}{{13}} + \frac{1}{{18}}}} = ...\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok! so we get 7.548 ?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2ok! R_0=7.55 ohms

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2now the current is: \[\large I = \frac{V}{{{R_{TOTAL}}}} = \frac{{15}}{{8.5 + 3.2 + 7.55}} = ...\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2yes! we can round off that result to I=0.78 amperes

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok! what does that mean then?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2now we have the subsequent voltage drop: \[\large \begin{gathered} {V_1} = {R_1}I = 8.5 \times 0.78 = ... \hfill \\ {V_{AB}} = {R_{AB}}I = 7.55 \times 0.78 = ... \hfill \\ {V_4} = {R_4}I = 3.2 \times 0.78 = ... \hfill \\ \end{gathered} \]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2dw:1434309867660:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok so we get 6.63; 5.889; 2.496?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2now please keep in mind that the voltage drops across R_2 and R_3 are the same, and both of them is equal to 5.889 volts

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2oops...both of them are equal to...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0meaning that R4 would be the solution? since it is 3.2?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2the greatest value is 6.63 volts

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok what does that mean? :/

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2that means the greatest voltage drop is across the resistor R_1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh okay:O sorry i got confused a bit! thank you:)
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.