The variable resistor Ro in the circuit in (Figure 1) is adjusted until it absorbs maximum power from the circuit. Suppose that v = 90 V. Figure V + 202 is 4 Ω + us 5Ω 13 i UA 1 of 1 G Ro
The variable resistor Ro in the circuit in (Figure 1) is adjusted until it absorbs maximum power from the circuit. Suppose that v = 90 V. Figure V + 202 is 4 Ω + us 5Ω 13 i UA 1 of 1 G Ro
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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KVL and KCL
KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.
Sign Convention
Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.
Question
A. Find Ro.
B. Find maximum power delivered to Ro.
C. Find the percentage of the total power developed in the circuit that is delivered to Ro.

Transcribed Image Text:**Text Transcription:**
The variable resistor \( R_o \) in the circuit in (Figure 1) is adjusted until it absorbs maximum power from the circuit. Suppose that \( v = 90 \, \text{V} \).
**Figure Description:**
The circuit diagram includes the following components and layout:
1. **Voltage Source (\( v \))**:
- A voltage source of \( 90 \, \text{V} \) is connected on the left side of the circuit.
2. **Resistors**:
- A \( 2 \, \Omega \) resistor is connected in series directly from the voltage source.
- A \( 4 \, \Omega \) resistor is in series with the \( 2 \, \Omega \) resistor.
- A \( 5 \, \Omega \) resistor is connected in parallel between the junction of the \( 2 \, \Omega \) and \( 4 \, \Omega \) resistors, and a dependent current source.
3. **Dependent Sources**:
- There is a current-dependent voltage source labeled \( 13i_{\Delta} \) connected in series below the \( 5 \, \Omega \) resistor.
- Another dependent current source, labeled \( v_{\Delta} \), is placed in parallel with the \( 4 \, \Omega \) resistor.
4. **Variable Resistor (\( R_o \))**:
- The variable resistor \( R_o \) is connected in parallel with the dependent current source, \( v_{\Delta} \).
**Current Direction**:
- The current \( i_{\Delta} \) flows through the \( 2 \, \Omega \) resistor as indicated by an arrow.
This configuration is user-adjustable, with \( R_o \) being varied for maximum power absorption conditions.
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