Current Calculation Problem (Probably Simple)

Click For Summary
SUMMARY

The discussion revolves around a basic circuit problem involving a cell with an electromotive force (e.m.f.) of 2V and an internal resistance of 1 Ohm. The user initially struggled to calculate the current through point A but ultimately resolved the issue independently. The problem also includes calculating the current through point B and the potential difference (p.d.) between the terminals of the cell. The user expressed a desire for assistance to understand the calculations better.

PREREQUISITES
  • Understanding of Ohm's Law
  • Basic knowledge of electrical circuits
  • Familiarity with electromotive force (e.m.f.)
  • Concept of internal resistance in circuits
NEXT STEPS
  • Study Ohm's Law applications in circuit analysis
  • Learn about series and parallel circuit configurations
  • Explore the concept of internal resistance in batteries
  • Investigate methods for calculating potential difference in circuits
USEFUL FOR

Students studying electrical engineering, hobbyists working on basic circuit projects, and educators teaching fundamental concepts of electricity.

Iscariot
Messages
7
Reaction score
0
A really basic circuit problem which I just don't understand.

In the attached figure, C is a cell of e.m.f. 2V and internal resistance 1 Ohm. Calculate:

a) the current through A
b) the current through B
c) the p.d. between the terminals of the cell

I really don't understand how to calculate the current through A. If someone could just help me with that then I'd appreciate it, I'm hoping that from someone pointing out what's probably obvious in part A, I'll be able to do B and C by myself.
 

Attachments

  • circuit problem.jpg
    circuit problem.jpg
    7.8 KB · Views: 489
Physics news on Phys.org
Never mind, I solved my own question. Sorry about this, it took me hours.
 
Last edited:

Similar threads

Identical Batteries in Parallel do not Draw Same Current, Non-Ideal?
  • · Replies 7 ·
Replies
7
Views
1K
Current through an inductor as a function of time
  • · Replies 10 ·
Replies
10
Views
1K
Current through parallel cells with unequal EMFs
  • · Replies 2 ·
Replies
2
Views
2K
Current in a circuit without external resistance
  • · Replies 8 ·
Replies
8
Views
2K
Current calculation of a Y-junction
  • · Replies 4 ·
Replies
4
Views
2K
When a short-circuit exists, how to find the current?
  • · Replies 4 ·
Replies
4
Views
3K
Why Use e.m.f. Instead of Terminal Voltage for Power Calculation?
  • · Replies 2 ·
Replies
2
Views
2K
Understanding example in Wikipedia entry for open circuit voltage
  • · Replies 3 ·
Replies
3
Views
2K
Calculating current with and without internal resistance
  • · Replies 6 ·
Replies
6
Views
3K
How does an eddy current brake work exactly?
  • · Replies 2 ·
Replies
2
Views
3K