Effect t the n put Ress tance: Power Supply following Cireuit, Using DC for the power source. Set the DC supply's output Contrast the to above 5 V

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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**Title: Understanding the Effect of Input Resistance in Circuit Design**

**Introduction:**
This educational guide explores the impact of input resistance on the measured and calculated voltage in a simple electrical circuit. We will examine how to set up the circuit using a DC power supply and interpret the data collected.

**Circuit Setup:**

1. **Power Source:** The circuit is powered by a 5V DC supply.
2. **Components:** The circuit includes a resistor connected in series with a voltmeter.
3. **Oscilloscope Connections:** 
   - Positive terminal connected through a resistor.
   - Ground terminal connected to common ground.

**Procedure:**

- Connect the DC power supply set to 5V as shown in the diagram.
- Measure the voltage across the resistor using an oscilloscope.

**Data Collection:**

| Resistance (R) | Calculated Voltage (V) | Measured Voltage (V) |
|----------------|------------------------|----------------------|
| 72.355 k-ohms  | 2.42 V                 |                      |
| 1 k-ohms       |                        | 0.65 V               |
| 10 k-ohms      |                        |                      |

**Analysis:**

- The table above shows the calculated and measured voltages for different resistance values.
- Compare the measured voltages to the calculated ones to observe discrepancies and understand the influence of resistance on voltage reading accuracy.

**Conclusion:**

This experiment demonstrates the significance of considering input resistance in circuit design, especially when precise voltage measurements are required. Adjustments in resistance can lead to discernible differences in expected and actual voltages, highlighting the need for careful component selection and circuit configuration.

**Note:** Always double-check connections and component values during setup to ensure accurate results.
Transcribed Image Text:**Title: Understanding the Effect of Input Resistance in Circuit Design** **Introduction:** This educational guide explores the impact of input resistance on the measured and calculated voltage in a simple electrical circuit. We will examine how to set up the circuit using a DC power supply and interpret the data collected. **Circuit Setup:** 1. **Power Source:** The circuit is powered by a 5V DC supply. 2. **Components:** The circuit includes a resistor connected in series with a voltmeter. 3. **Oscilloscope Connections:** - Positive terminal connected through a resistor. - Ground terminal connected to common ground. **Procedure:** - Connect the DC power supply set to 5V as shown in the diagram. - Measure the voltage across the resistor using an oscilloscope. **Data Collection:** | Resistance (R) | Calculated Voltage (V) | Measured Voltage (V) | |----------------|------------------------|----------------------| | 72.355 k-ohms | 2.42 V | | | 1 k-ohms | | 0.65 V | | 10 k-ohms | | | **Analysis:** - The table above shows the calculated and measured voltages for different resistance values. - Compare the measured voltages to the calculated ones to observe discrepancies and understand the influence of resistance on voltage reading accuracy. **Conclusion:** This experiment demonstrates the significance of considering input resistance in circuit design, especially when precise voltage measurements are required. Adjustments in resistance can lead to discernible differences in expected and actual voltages, highlighting the need for careful component selection and circuit configuration. **Note:** Always double-check connections and component values during setup to ensure accurate results.
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