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)...
Related questions
Question
A.) What is the current I?
B.) How much power is dissipated by the unknown resistor R? You should have a numerical value.

Transcribed Image Text:The image shows an electrical circuit diagram with the following components and parameters:
1. **Resistor Network:**
- The circuit begins at point "a" with a current of 0.25 A.
- The first resistor encountered has a resistance of 10 Ω.
- Following this, the circuit branches into a parallel configuration.
2. **Parallel Branches:**
- **First Branch:**
- A resistor with an unknown resistance, labeled as \( R = ? \).
- The current through this branch is specified as 0.1 A.
- **Second Branch:**
- A 10 Ω resistor is in series with a 5 Ω resistor.
- The total current flowing through this combination is labeled as \( I = ? \).
3. **Series Resistor:**
- After the branches recombine, the circuit includes a 20 Ω resistor leading to point "b".
This diagram is designed to help solve for unknown resistance \( R \) in the first branch and the unknown current \( I \) in the second branch using fundamental principles of electric circuits such as Kirchhoff's laws and Ohm's law.
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VIEWStep 2: Using concept for this question
VIEWStep 3: Using kirchhoff's current law and find current I
VIEWStep 4: Using parallel and series resistance concept and find voltage drop across unknown resistor R
VIEWStep 5: Using formula and find unknown resistor R and power dissipation across R
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