If R₁ = 63 Q and E₁ = 79 V, what is the power of R₁? (Round the FINAL answer to one decimal place.) & ww
If R₁ = 63 Q and E₁ = 79 V, what is the power of R₁? (Round the FINAL answer to one decimal place.) & ww
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Question
![**Problem Statement:**
If \( R_1 = 63 \, \Omega \) and \( E_1 = 79 \, \text{V} \), what is the power of \( R_1 \)?
(Round the FINAL answer to one decimal place.)
**Diagram Explanation:**
The diagram shows an electrical circuit with three resistors, \( R_1 \), \( R_2 \), and \( R_3 \), arranged in parallel. The circuit is powered by a voltage source denoted as \( E_1 \). The resistors are connected such that each has its own loop with the same voltage across it due to the parallel configuration.
**How to Solve:**
To find the power across resistor \( R_1 \), use the formula for power dissipation in a resistor:
\[ P = \frac{V^2}{R} \]
where \( V \) is the voltage across the resistor and \( R \) is the resistance.
Given:
\[
R_1 = 63 \, \Omega, \quad E_1 = 79 \, \text{V}
\]
Apply the formula:
\[
P = \frac{79^2}{63}
\]
**Calculation:**
1. \( 79^2 = 6241 \)
2. \( \frac{6241}{63} \approx 99.048 \)
Round the answer to one decimal place:
\[ P \approx 99.0 \, \text{W} \]
**Conclusion:**
The power dissipation across resistor \( R_1 \) is approximately \( 99.0 \, \text{W} \).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe9163f72-9cb9-47ec-9932-aa32cb69a25b%2F6aa2102d-3b8f-45ab-af2d-7e9f771d20f3%2Foa4zltq_processed.png&w=3840&q=75)
Transcribed Image Text:**Problem Statement:**
If \( R_1 = 63 \, \Omega \) and \( E_1 = 79 \, \text{V} \), what is the power of \( R_1 \)?
(Round the FINAL answer to one decimal place.)
**Diagram Explanation:**
The diagram shows an electrical circuit with three resistors, \( R_1 \), \( R_2 \), and \( R_3 \), arranged in parallel. The circuit is powered by a voltage source denoted as \( E_1 \). The resistors are connected such that each has its own loop with the same voltage across it due to the parallel configuration.
**How to Solve:**
To find the power across resistor \( R_1 \), use the formula for power dissipation in a resistor:
\[ P = \frac{V^2}{R} \]
where \( V \) is the voltage across the resistor and \( R \) is the resistance.
Given:
\[
R_1 = 63 \, \Omega, \quad E_1 = 79 \, \text{V}
\]
Apply the formula:
\[
P = \frac{79^2}{63}
\]
**Calculation:**
1. \( 79^2 = 6241 \)
2. \( \frac{6241}{63} \approx 99.048 \)
Round the answer to one decimal place:
\[ P \approx 99.0 \, \text{W} \]
**Conclusion:**
The power dissipation across resistor \( R_1 \) is approximately \( 99.0 \, \text{W} \).
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