0
it depends what type of bulb it is for example if it is an energy efficient bulb it uses about 80% of the electrical current into light and 20% heat
but if it is a filiment bulb it uses only 30% of the electricity into light the other 70% is turned into heat so they are better heaters than light sources
filliment bulbs can be found in old reading lamps on electric radiators
filliment bulbs are being reduced because they aren't energy efficient
hope you like the awnser :)
What else can I help you with?
How do you find the amount of heat on a light bulb?
by going in a dark room and see if it have lot of heat to light up the room
Can a light bulb heat up a room?
If a room is extremely well insulated and the wattage of the bulb is greater that the wattage heat loss then, yes a light bulb can heat up a room. The time that it takes to heat up a room would be considerable.
Does the presence of light increase the temperature in a room?
Yes, the presence of light can increase the temperature in a room, as light energy is converted into heat energy when it is absorbed by objects in the room.
Why does a darkened room feel cooler than a well lighted room?
Light is a form of energy, and can gernerate heat. A well lit room is often warmer due to light from either outside or from light generated by a lamp. Dark rooms are a lack of energy. So in a pitch black room the air may be much cooler.
Is it better to study in a light or dark room?
The heat capacity of a room is the same, whether it's lighted or dark, although a lit room will be warmer than a dark room (all other factors being the same). Adding mass to a room will change its heat capacity. More mass will slow down a temperature change. Less mass will speed it up.
Where does the light go in a dark room?
Light in a dark room gets absorbed by the surfaces in the room or scattered by particles in the air, eventually dissipating as heat. If no light sources are present, the room remains dark as there is no light to reflect off objects and be detected by our eyes.
Does light heat water up?
Yes, it does. Some of the energy from the light is converted to heat.
Does heat energy from a light bulb heat a room?
Yes, light bulbs emit heat energy as a byproduct of producing light. This heat can contribute to warming a room, especially if the light bulb is left on for an extended period of time. However, compared to other heating sources like a heater, the amount of heat produced by a light bulb is minimal.
What is a lamp for?
to light the room up
How does a room heat up without a radiator or heater?
A room can heat up without a radiator or heater through natural heat sources such as sunlight streaming in through windows, human body heat, heat generated by appliances, or insulation that traps and retains heat within the room. Closing curtains at night, using thermal curtains, and ensuring good insulation can all help increase the heat within a room.
What happens to the energy wasted by the light bulb?
The wasted energy by a light bulb is primarily given off as heat. This heat is dispersed into the surrounding environment, contributing to the overall temperature of the room.
Does heat travel up or down in a room?
Heat naturally rises in a room due to convection, which is the transfer of heat through the movement of air or fluid. This means that heat tends to move upwards towards the ceiling in a room.
