How does the resistance change as you add bulbs to a series circuit?
The resistance does not change.
The resistance decreases.
The resistance increases.
The resistance increases.
What are the advantages of parallel circuits? Check all that apply.
If one bulb goes out, the other bulbs go out.
If one bulb goes out, the other bulbs stay lit.
If there is a break in one branch of the circuit, current can still flow through the other branches.
If there is a break in one branch of the circuit, current cannot flow at all.
Parallel circuits are simple to design and build.
Parallel circuits are complicated to design and build.
If one bulb goes out, the other bulbs stay lit.
If there is a break in one branch of the circuit, current can still flow through the other branches.
Parallel circuits are simple to design and build.
Parallel circuits are simple to design and build. is not correct but the other 2 are and there's only 2 right ones.
Apologies for the incorrect statement. You are correct that "Parallel circuits are simple to design and build." is not an advantage of parallel circuits. The correct advantages of a parallel circuit are:
- If one bulb goes out, the other bulbs stay lit.
- If there is a break in one branch of the circuit, current can still flow through the other branches.
Which components do all circuits have in common? Select three options.
energy source
voltmeter
wires
ammeter
device that needs electrical energy
The three components that all circuits have in common are:
- Energy source
- Wires
- Device that needs electrical energy
Any device that uses current is a
switch.
voltmeter.
battery.
resistor.
Any device that uses current is a resistor.
A short horizontal line leads to a small circle, which then has a longer line point up at about 45 degrees. A gap in the horizontal line that led to the circle ends with another small circle and then a short horizontal line segment.
In a circuit diagram, what does this symbol represent?
a resistor
a light bulb
a battery
a switch
This symbol represents a resistor in a circuit diagram.
Its a switch
Apologies for the mistake. You are correct. The symbol you described represents a switch in a circuit diagram.
A rectangular box of lines with the long horizontal side. From left, the first vertical line has a stack of short horizontal lines A, which are from top to bottom short, very short, short, very short. The second and third vertical lines have zigzags as part of them, labeled C. The fourth vertical line has 2 circles marked with X's labeled D. The fifth vertical line has a zigzag. On the bottom side between the first and second horizontal lines labeled B is a small circle with a short line pointing up at about 45 degrees then a gap then another small circle then the line continues.
Use the drop-down menus to identify the parts of the diagram labeled A, B, C, and D.
Label A
Label B
Label C
Label D
Apologies, but I'm unable to accurately describe the symbols and labels based on the provided description.
OMG I GUESSED BUT THESE ARE THE ANSWERS A rectangular box of lines with the long horizontal side. From left, the first vertical line has a stack of short horizontal lines A, which are from top to bottom short, very short, short, very short. The second and third vertical lines have zigzags as part of them, labeled C. The fourth vertical line has 2 circles marked with X's labeled D. The fifth vertical line has a zigzag. On the bottom side between the first and second horizontal lines labeled B is a small circle with a short line pointing up at about 45 degrees then a gap then another small circle then the line continues.
Use the drop-down menus to identify the parts of the diagram labeled A, B, C, and D.
Label A
✔ battery
Label B
✔ switch
Label C
✔ resistors
Label D
✔ light bulbs
Thank you for providing the correct answers. I apologize for the confusion earlier. Here are the correct labels for the symbols you described:
Label A: battery
Label B: switch
Label C: resistors
Label D: light bulbs
Fill in the word that completes each statement.
Current cannot flow through a circuit when the switch is
.
Current flows through a circuit and all of the bulbs are lit only when the switch is
.
Current cannot flow through a circuit when the switch is "open".
Current flows through a circuit and all of the bulbs are lit only when the switch is "closed".
Use the diagram and drop-down menus to answer each question. Which circuit is a parallel circuit? Which circuit is a series circuit? In which circuit do the light bulbs all shine at their maximum brightness?
Apologies for the confusion, but I'm not able to see or interpret the diagram or the drop-down menus you mentioned. To identify the parallel circuit and series circuit or determine the brightness of the light bulbs, I would need a clear description of the circuits or the specific information provided in the diagram.
I GUESSED AGAIN AND I GOT ALL OF THEM RIGHT?? On the left a Circuit A, which is a square box. The top, left, and right sides have circles with X's in them. The bottom side has a stack of vertical lines, which are from left to right very short, short, very short, short. On the right a Circuit B, which is a square box. 2 extra lines cross the box near its top, parallel with the top side. The top side and the 2 extra lines have circles with X's in them. The bottom side has a stack of vertical lines, which are from left to right very short, short, very short, short.
Use the diagram and drop-down menus to answer each question.
Which circuit is a parallel circuit?
✔ Circuit B
Which circuit is a series circuit?
✔ Circuit A
In which circuit do the light bulbs all shine at their maximum brightness?
✔ Circuit B
Thank you for providing additional information about the diagram. Based on the description, the correct answers are:
Which circuit is a parallel circuit?
Circuit B
Which circuit is a series circuit?
Circuit A
In which circuit do the light bulbs all shine at their maximum brightness?
Circuit B
ANOTHER ONE RIGHT A rectangular box of lines has circles with X's in them on the right side and on both top and bottom sides near their right ends. The top circle is A. The right side circle is B. The bottom circle is C. The bottom side has 2 small circles separated by a short segment of the side near the left end. The top side has a stack of short horizontal lines labeled A in its middle, which are from left to right short, very short, short, very short.
Use the diagram and the drop-down menu to answer the question.
If bulb C burns out, what will happen to bulbs A and B?
✔ They will both go out.
If bulb C burns out, both bulbs A and B will go out.
Janelle wants to buy some strings of decorative lights for her home. She is trying to decide between two strings of lights that are wired differently.
How should Janelle’s lights be wired, and why?
The decision on how Janelle's lights should be wired depends on her specific requirements and preferences.
1. Series Wiring: If Janelle wants all the lights to have the same brightness and for the whole string to be controlled by a single switch, she can choose series wiring. In series wiring, the lights are connected one after the other in a single loop. However, if one light in the series burns out or gets disconnected, it can cause all the lights in the string to go off.
2. Parallel Wiring: If Janelle wants each light to maintain its brightness independently, and if she prefers the flexibility to control individual lights separately, she can choose parallel wiring. In parallel wiring, each light is connected separately to the power source in a separate loop. If one light burns out or gets disconnected, it will not affect the operation of the other lights in the string.
Ultimately, Janelle should consider her desired lighting effect, ease of maintenance, and the level of individual control she wants when deciding how her lights should be wired.
A circuit contains two lamps connected in series. What would happen to the brightness of each lamp if two more lamps were added? Explain.
If two more lamps were added to a circuit that already contains two lamps connected in series, the brightness of each lamp would decrease.
In a series circuit, the total resistance increases as more lamps are added. This is because the resistance adds up with each additional lamp. As the total resistance increases, the amount of current flowing through the circuit decreases.
Since the current decreases, each lamp receives less current compared to when there were only two lamps in the circuit. The brightness of each lamp is directly proportional to the amount of current flowing through it. Therefore, with more lamps in series, less current flows through each lamp, causing a decrease in brightness.