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Incandescent light bulbs waste a lot of energy by producing heat along with light, whereas energy-saving bulbs, such as LEDs or CFLs, are more efficient at converting electricity into light. Therefore, incandescent bulbs require more electrical energy to produce the same amount of light as energy-saving bulbs.

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1y ago

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How much of the electrical energy used to light an incandescent bulb is converted into light energy?

Only about 10% of the electrical energy used to light an incandescent bulb is converted into light energy. The rest is mostly given off as heat.


What device converts electrical energy into heat and light energy?

An incandescent light bulb is a device that converts electrical energy into heat and light energy through the process of resistive heating. The electrical current passing through the filament of the bulb heats it up to a temperature where it emits light and heat.


What is a device that transfers electrical energy to light and heat and sound?

An incandescent lightbulb is an example of a device that converts electrical energy into light and heat. A loudspeaker is a device that converts electrical energy into sound.


How can a filament in an incandescent light bulb transforms electrical energy?

When electricity flows through the filament in an incandescent light bulb, it encounters resistance, which causes the filament to heat up. This heat generates light and infrared radiation, converting the electrical energy into both light and heat energy.


What is the transformation of light enery?

Light energy can be transformed into other forms of energy such as heat, electrical energy, or chemical energy. For example, solar panels convert light energy from the sun into electrical energy, while incandescent light bulbs transform electrical energy into light and heat energy.


Are energy saving light bulbs brighter than regular light bulbs?

Not necessarily. They can be brighter, or less bright. Both the energy saving light bulbs and the old-fasioned incandescent light bulbs come in different powers.


What is the energy change in a LED?

In a LED, electrical energy is converted directly into light energy, resulting in a decrease in electrical energy and an increase in light energy. This process is much more efficient than traditional incandescent bulbs, which waste energy as heat.


What converts electrical energy into light?

We see the conversion of electrical energy into light in both incandescent and fluorescent lamps. The light emitting diode (LED) also does this.


What kind of energy does a toaster converts electrical energy?

Mostly heat, and a little bit of light. A lot like an incandescent light bulb.


What is the energy pathway for an incandescent?

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Does an incandescent bulb and a light stick use the same form of energy to create light?

No, an incandescent bulb produces light by heating a filament to a high temperature until it glows, using electrical energy. On the other hand, a light stick produces light through a chemical reaction, where two chemical compounds mix together to create light, without the need for electricity.


Is it correct to say that an incandescent bulb and a light stick use the same form of energy to create light Why or why not?

No. One is chemical energy, the other is electrical energy.