Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Transcribed Image Text:**Circuits Lab Simulation Exercise**
**20. Question:**
What happens to the other light bulbs in a parallel circuit when you make a break in the circuit by disconnecting one light bulb? Explain why.
**21. Task:**
Fill in the VIR (Voltage, Current, Resistance) table below for a parallel circuit with 3 light bulbs using the voltmeter and ammeter to measure voltage and current across each light bulb and use Ohm’s Law and the VIR rules for the totals. Click on the values box in the top right corner of the screen to fill in the values for the resistance.
**Data Collection Table:**
| Light Bulb | V-Voltage (V) | I-Current (A) | R-Resistance (Ω) |
|---------------|---------------|---------------|------------------|
| Light Bulb 1 | | | |
| Light Bulb 2 | | | |
| Light Bulb 3 | | | |
| **Total** | | | |
**Section E: Concept Check**
**Explanation of Graphs and Diagrams (in absence of diagrams):**
In this activity, you'll be using a simulation tool to observe and measure the characteristics of a parallel circuit. This includes understanding how voltage, current, and resistance behave in parallel circuits.
- **V-Voltage (V):** This column is for recording the voltage across each light bulb. In a parallel circuit, the voltage across each component (light bulb) remains the same.
- **I-Current (A):** This column is for recording the current flowing through each light bulb. In a parallel circuit, the total current is the sum of currents through each branch.
- **R-Resistance (Ω):** This column is for calculating the resistance for each light bulb using Ohm’s Law, R = V/I, where V is voltage and I is current.
Use the provided voltmeter and ammeter tools to measure these values accurately and fill in the table accordingly.
**Figure Description:**
The image includes two separate parallel circuits with light bulbs:
- The top circuit has 2 light bulbs connected in parallel.
- The bottom circuit has 3 light bulbs connected in parallel.
Each light bulb in both circuits emits light rays indicating brightness.
**Question:**
a. Based on the length of the light rays, when a third light bulb is added in parallel the brightness of each bulb _________.
---
In the provided images:
- There are diagrams showing the two parallel circuit setups.
- The top diagram demonstrates 2 light bulbs wired in parallel, each showing long light rays indicating they are bright.
- The bottom diagram shows 3 light bulbs in parallel with slightly shorter light rays for each light bulb compared to the top diagram, suggesting a difference in brightness.
**Conclusions:**
When comparing the brightness of the light bulbs:
- As more bulbs are added in parallel, the brightness of each individual bulb may vary.
- Typically, by adding more bulbs in parallel, the overall brightness can be affected, and each bulb may get slightly dimmer due to the distribution of the constant voltage from the battery.
This comparison helps in understanding the relationship between the number of components in a parallel circuit and their individual performances.
---](https://content.bartleby.com/qna-images/question/e59874f9-f705-461a-94a3-07d771601ab4/2344c9d9-3ace-4227-b053-7cd05dd0f1b9/chn53oi_processed.jpeg)
Transcribed Image Text:---
### Circuits Lab Simulation - 10382745
**Instructions:**
15. Keep the battery voltage the same and build another parallel circuit next to the first parallel circuit using 3 light bulbs.
19. Compare the brightness of 2 light bulbs wired in parallel relative to the brightness of 3 light bulbs wired in parallel.
**Figure Description:**
The image includes two separate parallel circuits with light bulbs:
- The top circuit has 2 light bulbs connected in parallel.
- The bottom circuit has 3 light bulbs connected in parallel.
Each light bulb in both circuits emits light rays indicating brightness.
**Question:**
a. Based on the length of the light rays, when a third light bulb is added in parallel the brightness of each bulb _________.
---
In the provided images:
- There are diagrams showing the two parallel circuit setups.
- The top diagram demonstrates 2 light bulbs wired in parallel, each showing long light rays indicating they are bright.
- The bottom diagram shows 3 light bulbs in parallel with slightly shorter light rays for each light bulb compared to the top diagram, suggesting a difference in brightness.
**Conclusions:**
When comparing the brightness of the light bulbs:
- As more bulbs are added in parallel, the brightness of each individual bulb may vary.
- Typically, by adding more bulbs in parallel, the overall brightness can be affected, and each bulb may get slightly dimmer due to the distribution of the constant voltage from the battery.
This comparison helps in understanding the relationship between the number of components in a parallel circuit and their individual performances.
---
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