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Electromotive force (EMF) is another term for voltage. Thermal EMF is voltage that is created by thermal (heat) energy, and there are several ways this can be done. Let's look at one.
The most common application of the idea of the generation of voltage by what we call thermoelectric effect (which is a form of contact potential) is probably the thermocouple. This device, which is essentially the placement of two dissimilar metals up against each other, will cause a difference of potential (a voltage) to appear across the junction of the two metals. This characteristic makes the device very useful in measuring temperature, to cite just one application of the idea. A link can be found below for more information.
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The standard measure unit of electromotive force?
Electromotive force is measured in volts.
How many thermal power stations are in India which are thermal power plant?
Pora po inka nuvventi cheppedi
Which is more powerful a thermal detonator or a cluster grenade in star wars?
The Grenade Thermal Detonator would be more Powerful
What is the full form of NTPC?
NATIONAL THERMAL POWER CORPORATION (INDIA).
What is voltage and how is it made?
Voltage is more formally and descriptively called electromotive force. It is an electromagnetic force which causes outer valence electrons in the atoms of an electrical conductor to be disclocated and move from one atom to an adjacent atom when the conductor is connected in a loop or electrical circuit. The common unit of electromotive force is the volt. An electrical source, either directly connected or magnetically coupled with the circuit, produces the electromotive force. A "voltage source" maintains a fairly constant voltage in a circuit when resistance and current varies. A "current source" maintains a fairly constant current when resistance and voltage varies. A generator, is an inductive device that converts mechanical energy, usually delivered through a rotating power shaft, to electrical energy. A revolving magnetic field in a rotor induces voltage in stationary coils (stator). The rotor can be either an electromagnet or permanent magnets. Batteries and fuel cells produce voltage by a chemical reaction in a special cell which produces an excess of electrons at one electrode incorporated in the cell, which becomes negative, and an absence of electrons at the other electrode, which is the positive pole. A photovoltaic cell is a light sensitive device constructed of semiconductor materials that readily absorb photons and release electrons in response. Conductive plates on either side of the cell develop an excess of electrons at one plate and an absence of electrons at the other plate, with a resulting voltage across the plates. Thermocouples consist of two dissimilar conductive materials that are joined together at a junction. If each side of the junction is at a different temperature, a voltage will occur across the two conductive ends of the thermocouple.
What is meant by an electromotive force of 12V?
Electromotive force is an old term for voltage.
What is the virtual exchange particle used by electromotive force?
Electromotive force = electromagnetic force The photon (γ)
The standard measure unit of electromotive force?
Electromotive force is measured in volts.
Would the electromotive force be equivalent to voltage?
Yes, voltage is the unit of measure of electromotive force.
What kinds of force?
Electromotive force,magnecti force
Kinds of force?
Electromotive force,magnecti force
Why the unit of potential difference and electromotive force is the same?
Because an electromotive force is a potential difference (voltage) -specifically, an electromotive force is the open-circuit or no-load potential difference of a source such as a battery or generator.
Is electromotive a chemical property?
Electromotive force is a physical phenomenon.
What is the unit of electromotive force?
volt
Is electromotive force a vector quantity?
No.
These makes electricity move?
electromotive force
What can emf of electromotive force also be called?
electro magnetic force
