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How did you determine if there had been a change in the brightness of the bulb?
Wiki User
∙ 12y ago
You would have to measure the lumen output before and after to determine is there was a change. There are light meters that can do this. You need to be aware of any background or ambient light during such measurements.
Wiki User
∙ 12y ago
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How do you change the brightness of the bulb?
Increase the voltage supply.
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 effect would a pencil have on the brightness of a bulb?
A pencil has nothing to do with the brightness of a light bulb.
Why did the light bulb change brightness along the pencil?
because the pencil take the a litte enrgy.
Is there any change in brightness when a lighting bulb is shifted in a mirror covered room?
Almost none.
What piece of electrical apparatus is used to change the brightness of a light bulb?
That is called a rheostat or a dimmer.
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.
How does the brightness of each bulb in a parallel circuit compare to the brightness of the bulb in a series circuit?
u see the light bulbs on a series circuit's brightness evolves and the brightness on a parallel's circuit dont
How are light bulbs efficiency increased?
The brightness of a standard bulb is directly proportional to the amount of voltage drop across the bulb itself. Thus, to increase the brightness :-Pass more current across the bulb by reducing the resistance of the circuitIncrease the voltage across the bulb, or the circuit. Change the supply.
Does the number of batteries change the brightness of the bulb?
It will if the batteries are connected in series. If they are connected in parallel, the lamp will burn longer, but not brighter.
What are some information on light bulb?
brightness
