A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing


  • 4 years ago

Consider the above diagram 1) What is equivalent potential for batteries 1 and 2 if they are 4.0 Volts and 9 volts respectively. 2) If the resistors are R1: 3.9 ohms, R2: 6.1Ohms, and R3: 1.0 Ohms. and the batteries are the same, what is the current out of the batteries? 3) What is the voltage across V2-3 over R2 and R3?

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

    1 Attachment
  2. TuringTest
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    The total potential is just the sum of the EMF's of the batteries (V1+V2). Resistors in series are added to find the total resistance. Kirchoff's law about the voltage changes of a closed circuit summing to zero then gives us\[V_1+V_2-IR_{\text{total}}=V_1+V_2-I(R_1+R_2+R_3)=0\]find the current by solving for I. The voltage change across a given segment is found from Ohm's law\[\Delta V=IR\]Where R is the total resistance across the segment. For example the change in voltage across resistors 1 and 2 would be\[\Delta V_{12}=I(R_1+R_2)\]

  3. 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...


  • 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.