0
Short Answer:
Whenever electrical current encounters resistance, heat is generated.
Many home heating appliances (e.g. toasters, water heaters) work on this principle as well as tools (e.g. soldering iron, hair dryer) and even industrial furnaces. In each case, the resistance doing the heating has its specific performance characteristics that is has to meet, but the underlying scientific principle is the same.
More:
The simplest electronic component is probably the resistor.
A resistor has no purpose other than to "resist" the flow of electricity. It performs no function other than turning electrical energy into heat energy. (Often the purpose is not to generate heat, but to control voltage or current and the generation of heat is secondary.)
If a current I flows through a resistor R, then the rate of power, P, is
P=I2R.
Similarly, if a voltage drop of V occurs across a resistor, the Power is,
P=V2/R.
These equations are the same as saying that power associated with a resistor is, P=VI.
The power is the rate at which heat is generated and therefore the rate at which electrical energy is converted to heat energy.
Another Answer
Heat is no longer thought of as 'thermal energy' or as 'heat energy' but, rather, as energy in transit between a warmer body and a cooler body. If you like, it's thought of as being a 'process' or a 'transition', rather in the same way 'rain' describes water as it changes from being a vapour (a cloud) to a puddle! What used to be though of as 'heat energy' or 'thermal energy', these days, is called internal energy and describes the sum total of all the various types of energy within a body.
Work is thought of in a similar way to heat, except that it describes energy in transit from one form into another. For example, a motor does work when it converts electrical energy into kinetic energy.
So, when a current passes through a conductor, work is done on that conductor, meaning that the electrical energyis converted into internal energy, causing the conductor's existing internal energy to rise. This is accompanied by a temperature rise and, because the conductor's temperature is now higher than its surroundings, heat transfer takes place from the warmer conductor to the cooler surroundings.
So the process of converting electrical energy into heat is: electrical energy becomes internal energy (work is done), causing the internal energy of the conductor to rise; this is accompanied by a rise in the conductor's temperature, causing heat transfer to take place from the conductor to its surroundings.
What else can I help you with?
How do you convert laser energy to electrical energy?
By using photo electric emission phenomenon.
Why are motors lamps and other resistors considered a loads in electrical circuits?
Because they use electrical energy to produce mechanical energy or heat energy
How do you convert fuel energy into heat energy?
When you burn the gas, it explodes, and creates energy.
5 examples of transformation of energy?
TV- Electrical energy to light and sound energy Radio and stereo - Electrical energy to sound energy Fan- electrical energy to mechanical energy Toaster - Electrical energy to heat energy Light bulb- Electrical energy to Light energy Battery or cell - Chemical energy to electrical energy
What does the light bulb do in a circuit?
Bulbs convert an electrical energy to produce light
How can you convert electrical energy to mechanical sound and heat energy?
To convert electrical energy to mechanical sound and heat energy, you can use an electric motor. The electric motor converts electrical energy into mechanical energy by utilizing the magnetic field generated by the electric current flowing through a coil of wire. The mechanical energy produced can then be used to generate sound and heat energy through the movement and friction of components within the motor.
What does an electric blanket covert electrical energy to?
Heat. Electric blankets are simply a resistance coil, which convert electrical energy to heat.
Do lasers convert electrical energy to heat?
Lasers convert electrical energy to light energy, not heat. The light energy produced by lasers can be used in various applications such as cutting, welding, and medical procedures. However, some of the electrical energy may be converted to heat within the laser system itself.
When you turn on a toaster you convert electrical energy into what type of energy?
When you turn on a toaster, you convert electrical energy into heat energy. The electricity flowing through the heating elements of the toaster causes them to heat up, which in turn toasts the bread placed inside.
How do you convert thermal into sound energy?
Two step process: First convert heat to electrical and then cpnvert electrical to sound....
How do you convert electrical energy to other form?
Electrical energy can be converted to other forms of energy through various devices such as electric motors, which convert electrical energy to mechanical energy. Other methods include using resistors to convert electrical energy to heat, or using transformers to convert electrical energy to magnetic energy. Each conversion process follows the principles of energy conservation.
What are the three electrical appliances that use circuits to convert electrical energy into other forms of energy?
That's what all electrical appliances do - convert electricity into other forms of energy.That's what all electrical appliances do - convert electricity into other forms of energy.That's what all electrical appliances do - convert electricity into other forms of energy.That's what all electrical appliances do - convert electricity into other forms of energy.
What device convert heat energy into electrical energy?
It is a thermocouple that converts thermal energy into electrical energy through what is called the thermoelectric effect.
Some hot water heaters convert electrical energy into what?
kinetic & heat energy
Does an iron wire convert heat to electrical energy?
No, an iron wire does not convert heat to electrical energy on its own. However, certain materials like thermoelectric materials can generate electricity from heat through a phenomenon known as the Seebeck effect, where a temperature difference in the material creates a voltage potential.
What do Space heaters convert most of the electrical energy in a circuit into?
Space heaters convert most of the electrical energy into heat energy. This heat is then radiated into the surrounding space, providing warmth in the room or area where the space heater is placed.
What is the job for a bulb?
The job of a bulb is to convert electrical energy into light energy, a by product is heat energy.
