0
We understand diectric heating as the generation of thermal energy (heat) in a non-conducting material by the application of an electromagnetic force or field t it. This is the way a microwave oven heats things placed in it.
The microwaves (electromagnetic energy) cause water molecules, which are slightly polar, to "flip" back and forth in an attempt to align themselves with the magnetic field of the microwave energy. The "flipping" or "ringing" of these molecules created thermal energy in them, and this is transferred throughout whatever is inside the oven cavity when it's on. The result is that stuff gets hot, which is why we put it in there.
What else can I help you with?
What is the principle of underfloor heating systems?
I can say that the principle of underfloor heating would be providing a perfect way to make our lifestyle even more awesome with the comfort in any part of your house or your entire home!
In a home that has 120 v service heating is provided by electric resistance heat with an overall resistance of 40 ohms hom much heating power will the electric resistance heater generate?
The formula you are looking for is W = E(squared)/R, W = Voltage (squared) divided by Resistance.
What circuits can be used to measure the resistance of the heating element shown as a resistor in the diagram?
To measure the resistance of a heating element represented as a resistor in a circuit diagram, you can use a simple ohmmeter or a multimeter set to the resistance measurement (ohm) mode. Alternatively, a Wheatstone bridge circuit can be employed for more precise measurements, allowing for comparison against known resistances. Both methods will provide accurate readings of the heating element's resistance when it is disconnected from the power supply.
Can heating devices be made by passing an electric current through a conductor of high resistance low resistance high conductivity low conductivity?
Heating is caused by current flow. Certain types of wire like tungsten emit more heat than other types. Lower resistance means higher current for a fixed voltage per Ohm's Law. So the efficiency of heating with electricity depends on the material of the conductor, the operating voltage and the resulting current. In most instances this will be a low resistance with high conductivity.
What is resistance heater?
A resistance heater is a type of heating device that generates heat through the process of electrical resistance. When an electric current passes through a resistive material, it encounters resistance, which converts electrical energy into thermal energy. These heaters are commonly used in various applications, including industrial processes, space heating, and household appliances like toasters and electric stoves. They are known for their efficiency and simplicity in design.
Does the wire in the electrical cord of an electric have a higher or lower resistance than the Heating element inside the kettle?
The wire in the cord has much lower resistance than the heating element. The heating element is a resistive or resistance heating element. Resistance in the quality of a substance or material that causes it to limit current flow, and it get heated up in the process. The heating element has all but the smallest fraction of the resistance in the circuit, so the heat, that thermal energy that get the water hot, is generated by the resistance of the heating element.
Why you select high resistance of heating element?
Because Heat is Directly Proportional to Resistance Of ElementAnswerPower is inversely, not directly, proportional to the resistance of a heating element.So, the higher the resistance, the lower the heating effect. For example, a 'high-wattage' lamp has a lower resistance than a 'low-wattage' lamp.This is because power is equal to the voltage squared divided by resistance; so, the lower the resistance, the more powerful (and, therefore, the hotter) the heating element.
Does the wire in the electrical cord of an electric kettle have a higher or lower resistance than the heating element inside the kettle?
The wire in the cord has much lower resistance than the heating element. The heating element is a resistive or resistance heating element. Resistance in the quality of a substance or material that causes it to limit current flow, and it get heated up in the process. The heating element has all but the smallest fraction of the resistance in the circuit, so the heat, that thermal energy that get the water hot, is generated by the resistance of the heating element.
How does a electric fan regulator works?
it works on heating principle , when we want more speed indecreases its resistance and when we want less speed it increases itresistance to the flow of electric current and get itself heated
How energy is transformed in electric flat iron?
An electric iron has a heating element that offers electrical resistance. The resistance causes friction to occur in the electrons and causes a heating effect.
How energy transformed in electric flat iron?
An electric iron has a heating element that offers electrical resistance. The resistance causes friction to occur in the electrons and causes a heating effect.
How electric flat iron energy is transformed?
An electric iron has a heating element that offers electrical resistance. The resistance causes friction to occur in the electrons and causes a heating effect.
How the electric transform in electric flat iron?
An electric iron has a heating element that offers electrical resistance. The resistance causes friction to occur in the electrons and causes a heating effect.
What is the principle of underfloor heating systems?
I can say that the principle of underfloor heating would be providing a perfect way to make our lifestyle even more awesome with the comfort in any part of your house or your entire home!
What is the principle of resistance?
joule's law heat =current^2 * resistance * time
Why do you use electrical resistance?
For Heating purposes, lighting purposes
What is the Ohmic heating equation and how does it relate to the process of heating materials through electrical resistance?
The Ohmic heating equation describes how electrical resistance generates heat when current flows through a material. It relates to the process of heating materials by showing how the amount of heat produced is directly proportional to the electrical resistance and the square of the current passing through the material. This relationship helps in understanding and controlling the heating process in various applications, such as in electric stoves or industrial heating systems.
