Will these lightbulbs light up?

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Discussion Overview

The discussion revolves around a project involving lightbulbs and a 9-volt battery, specifically addressing whether the lightbulbs will light up under certain wiring configurations. The scope includes conceptual understanding of electrical circuits and practical implications of wiring designs.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions if a single lightbulb will light up when connected directly to a 9-volt battery.
  • Another participant suggests that if the wires do not touch where they cross, the configuration with three lightbulbs is a parallel circuit and should work properly.
  • Concerns are raised about the potential for the first diagram to short-circuit the battery, leading to battery damage or fire hazards.
  • A participant expresses uncertainty about the implications of wire connections in the diagrams and acknowledges the need for insulation around the wires.
  • There is a suggestion that lightbulbs specifically designed for 9-volt batteries are generally not available, prompting a quiz question about the reasoning behind this.

Areas of Agreement / Disagreement

Participants express differing views on the safety and functionality of the proposed wiring configurations. Some agree that the second diagram could work under certain conditions, while others highlight the risks associated with the first diagram. No consensus is reached regarding the overall safety and effectiveness of the designs presented.

Contextual Notes

Participants note potential issues with wire connections and the need for insulation, indicating that assumptions about standard wiring practices may not apply in this scenario. There is also an acknowledgment of the lack of specific lightbulbs for 9-volt batteries.

Max CR
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This is part of a project I am working on. It is not related to school.

circuit.jpg


Figure One

The block is a 9 volt battery. The circle is the lightbulb. The wires goes from the battery to the lightbulb. Between the lightbulb and the battery the two wires connect. Will the lighbulb still light?

Figure Two

The block is a 9 volt battery. The circle is a lightbulb. The wires go from the battery to the three lightbulbs. Between the lightbulbs and the battery, the wires connect at the indicated places. Will the lightbulbs still light? Will the lightbulbs light evenly? Will the lightbubls light at the same time?

Thank you. Please only give real answers since this is an important question.
 
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Quick answer
No
Yes,Yes,Yes (assuming that the wires don't touch where they cross - this isn't exactly a standard circuit diagram drawing)

Are you interested in the reasons?
 
For the second, as long as they only join in the two points at the bottom and not where the lines cross, that's just a clumsily drawn parallel circuit and will work fine.
 
Max CR said:
This is part of a project I am working on. It is not related to school.

circuit.jpg


Figure One

The block is a 9 volt battery. The circle is the lightbulb. The wires goes from the battery to the lightbulb. Between the lightbulb and the battery the two wires connect. Will the lighbulb still light?

Figure Two

The block is a 9 volt battery. The circle is a lightbulb. The wires go from the battery to the three lightbulbs. Between the lightbulbs and the battery, the wires connect at the indicated places. Will the lightbulbs still light? Will the lightbulbs light evenly? Will the lightbubls light at the same time?

Thank you. Please only give real answers since this is an important question.

What kind of important project is this? It would help us to give you real answers if you put the question in context.

Also, there generally are no "light bulbs" for 9V batteries (Quiz Question -- why?)

And why in the world would you ask if the shorted out battery in the first figure will still light a "light bulb"? Makes no sense.
 
THank you. Being that these wires will actually CONNECT in the diagram, I thought that where the wires cross/connect to each other that this may be a problem. It turns out that it is. I will have to put insillation around these wires. Thanks again!
 
You do know that the first diagram will destroy the battery - and possibly start a fire?
 
Max CR said:
THank you. Being that these wires will actually CONNECT in the diagram, I thought that where the wires cross/connect to each other that this may be a problem. It turns out that it is. I will have to put insillation around these wires. Thanks again!
Uh, most wires come with insulation...you can buy some!
 

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