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How much of the energy in a filament lamp is lost through heat?
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What happens to the energy when you turn on an electric lamp?
Electricity flows through the filament, resistance in the filament causes heat and light energy to be created.
What are the energy transformations occurring in a filament lamp?
Electricity to heat, then black body radiation (i.e. heat to light [e-m radiation]).
What energy conversion is mainly by the glowing filament of an incandescent lamp?
Electrical energy is converted into heat. Most of this is emitted as infrared radiation; a lesser amount is also radiated as visible light (usually the main purpose of the lamp).
What kind of energy does a heat lamp give?
heat and light energy
What part of the lamp converts electricity to light?
For a filament-type (incandescent) lamp, it's the filament.
What happens to the energy when you turn on an electric lamp?
Electricity flows through the filament, resistance in the filament causes heat and light energy to be created.
A lamp transforms electrical energy into what?
Mostly heat, but that heat causes a filament to glow, which makes light.
What are the energy transformations occurring in a filament lamp?
Electricity to heat, then black body radiation (i.e. heat to light [e-m radiation]).
What energy conversion occurs in a battery operated flash light?
Chemical potential energy is converted to electrical potential energy. When the circuit is closed, the electrical potential becomes kinetic energy as electrons flow through the conductor. When the electrons meet the resistance of the flashlight lamp, they do work on the filament, converting electron flow into heat, causing the filament to increase in temperature. The filament is designed to convert that heat into radiant light.
When you turn on a lamp and the light bulb becomes warm which energy conversion causes this heating of the light bulb?
Electrical energy absorbed by the lamp's filament produces thermal energy as well as light.
What energy conversion is mainly by the glowing filament of an incandescent lamp?
Electrical energy is converted into heat. Most of this is emitted as infrared radiation; a lesser amount is also radiated as visible light (usually the main purpose of the lamp).
Is resistance in the filament of a lamp essential or not?
Yes, the resistance of the filament of a light bulb is what generates enough heat to make the filament glow and produce light.
What device converts electromagnetic radition into heat energy?
Heat Lamp. Is a lamp that shines heat energy ( electromagnetic Energy) into the form of heat.
Why is the filament inside an electric lamp made very fine?
The filament is fine so that its electrical resistance can be quite high. It is also long, for the same reason. Usually it is coiled up to fit the length in the lamp. The heating effect of electric current is proportional to the current squared, time the resistance (I*I*R). Most of the effect is due to the current. The current through the filament must be limited to stop it melting. Adding resistance will do that. Taking resistance away increases heating. So, a low energy lamp has a very thin filament and a high energy lamp will have a thicker filament.
When you turn on a light bulb you are observing the law of conservation of energy at work How is the law of conservation of energy at work in the light bulb?
When an electric current flows through the lamp filament, it is doing work (W) on that filament. This causes the internal energy (U) to rise which, in turn, causes its temperature to rise. Because the temperature is now higher than the surrounding temperature, heat(Q) transfer takes place to the surroundings.The change in internal energy of the filament is equal to the following:change in U = W - QThis equation accounts for all changes in energy in the filament.
What degrees is it under a lamp?
Depends on the lamp and bulb if you are referring to temperature. Directly related to energy wasted as heat and not converted to lumens. The element or filament has a higher resistance and displaces heat. Inefficient unless heat is your goal as with a heat lamp. If you are referring to degrees of diffusion; that depends on the bulb or the shades diameter, the shades reflectivity and distance of the light source to the end of the shade.
What kind of energy does a heat lamp give?
heat and light energy
