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A pencil has nothing to do with the brightness of a light bulb.

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16y ago

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Related Questions

What effect does the pencil lead have on the brightness of the bulb in a circuit?

The pencil lead does not have a significant effect on the brightness of the bulb in a circuit because it does not conduct electricity efficiently. In order for the bulb to light up brightly, the circuit needs an efficient conductor such as a metal wire to allow the current to flow easily and light up the bulb.


What would happen to the brightness of a bulb if you slid an alligator clip along the pencil lead?

The brightness of the bulb would decrease as the alligator clip moved along the pencil lead. This is because the resistance in the circuit would increase as the clip moves farther from the battery source, resulting in less current flow and therefore less brightness in the bulb.


Why did the light bulb change brightness along the pencil?

because the pencil take the a litte enrgy.


What would happen to the brightness of the bulb if you added a second bulb in with the first?

The brightness of a bulb would not change if you added a second bulb in parallel with the first.Unless, of course, the increased current exceeded the power supply's capacity causing a reduction in voltage.


How do you alter the brightness of a bulb?

You alter the brightness of a bulb by changing the voltage or frequency that is applied to the bulb.


What would happen to the brightness if you get a smaller bulb?

If smaller means less power for the same voltage, then a smaller bulb would result in less brightness. If smaller means less voltage for the same power, then a smaller builb would result in more brightness.


How would you compare the brightness of the bulbs as you increase the number of bulbs?

-- If the bulbs are in parallel, then the addition of a bulb has no effect on the brightness of those that were there before. -- If the bulbs are in series, then the addition of a bulb causes the brightness of those that were there before to decrease. (And I wasn't even there when you did the experiment !)


What is the Relationship Between Voltage And Brightness of the Bulb?

The relationship between voltage and brightness of a bulb is directly proportional. As voltage increases, the brightness of the bulb increases because higher voltage provides more energy for the bulb to emit light. Conversely, decreasing voltage reduces the brightness of the bulb.


What is the equivalent brightness of a 9W LED bulb compared to traditional incandescent bulbs?

A 9W LED bulb is roughly equivalent in brightness to a 60W incandescent bulb.


When three bulbs connected to a battery in parallel circuit what will happen to the brightness of the bulbs?

The brightness of three bulb would be mare than one


How do you increase brightness of a bulb?

To increase the brightness of a bulb, you can use a bulb with a higher wattage, as higher wattage typically produces more light. Alternatively, you could use a dimmer switch to adjust the brightness if the bulb is compatible. Lastly, ensure that the bulb is clean and free from obstructions, as dirt or dust can diminish its brightness.


How does the amount of magents and wire affect the brightness of a light bulb?

The brightness of a light bulb directly has no direct relationship with magnets and wire. The bulbs brightness is determined by the wattage of the bulb. The higher the wattage of the bulb the brighter the bulbs light output.