College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question
I need some help solving this problem.
I need to find the magnitude and direction of the current in this photo.
![The image depicts a node with arrows indicating current flow in an electrical circuit. It represents a typical problem in circuit analysis where current at a junction is analyzed to apply Kirchhoff’s Current Law (KCL). Here are the details:
- There are four arrows representing currents:
- A 3A current entering the node.
- A 2A current entering the node.
- A 6A current exiting the node.
- A 4A current exiting the node.
- There is a question mark at one of the arrows, indicating the unknown current, for which a value needs to be found.
To solve this using KCL, which states that the total current entering a junction equals the total current leaving the junction, you can set up the equation:
\[ 3A + 2A + ? = 6A + 4A \]
The unknown current needs to be calculated to satisfy this equation.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5b404284-f3ac-4fad-97e0-0e40daa06506%2Fb8e15a9d-fa95-487c-8413-f35f5e7cc20a%2Fre86bjm_processed.png&w=3840&q=75)
Transcribed Image Text:The image depicts a node with arrows indicating current flow in an electrical circuit. It represents a typical problem in circuit analysis where current at a junction is analyzed to apply Kirchhoff’s Current Law (KCL). Here are the details:
- There are four arrows representing currents:
- A 3A current entering the node.
- A 2A current entering the node.
- A 6A current exiting the node.
- A 4A current exiting the node.
- There is a question mark at one of the arrows, indicating the unknown current, for which a value needs to be found.
To solve this using KCL, which states that the total current entering a junction equals the total current leaving the junction, you can set up the equation:
\[ 3A + 2A + ? = 6A + 4A \]
The unknown current needs to be calculated to satisfy this equation.
Expert Solution
Step 1
According to Kirchhoff's current rule total current leaving a junction is equal to total current entering into a junction.
The total current entering,
Total current leaving,
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