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Joule heating is referred to as ohmic heating or resistive heating because of its relationship to Ohm's Law. It forms the basis for the myriad of practical applications involving electric heating. However, in applications where heating is an unwanted by-product of current use (e.g., load losses in electrical Transformers) the diversion of energy is often referred to as resistive loss. The use of high voltages in electric power transmission systems is specifically designed to reduce such losses in cabling by operating with commensurately lower currents. The ring circuits, or ring mains, used in UK homes are another example, where power is delivered to outlets at lower currents, thus reducing Joule heating in the wires. Joule heating does not occur in superconducting materials, as these materials have zero electrical resistance in the superconducting state. so it is sometimes desirable and sometimes not............
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10 joules of work to push 1 coulomb of chrage into an electric field?
it would be 10 joules because all you do is divide 10 joules by 1 coulomb of charge and you get 10 joules or (V) volts
Calculate the power in watts used if you exert 50 joules of work in 5 seconds?
Watts is joules per second, so 50 joules in 5 seconds is 10 watts.
Will the value of joules constant be same if AC were used instead of DC?
Joules measure energy (power x time). If the AC voltage is expressed as rms (root mean square) and not peak, and there are no capacitors or inductors in the circuit, then the joules per second (=power ) will be the same.
What terminology is used for a heating system that heats many rooms from one central location?
This type of a heating system is known as central heating.
What is the unit of energy of inductor?
I am not entirely sure what you mean. Energy is measured in joules. The energy stored in an inductor would therefore also be measured in joules. The "strength" of an inductor is measured in henry, but that is not an energy unit.
Is joules heating effect-a reversible effect?
yes,joule is a heating reversible effect .
How many joules does a kilogram of coal have?
On average, coal has a heating value of about 24 megajoules per kilogram. This means that a kilogram of coal has approximately 24,000,000 joules of energy.
How many joules are in a kg of wood?
On average, wood has a heating value of around 16-20 megajoules per kilogram (MJ/kg). This means that a kilogram of wood contains about 16,000-20,000 joules of energy.
Are all changes desirable?
Are all changes desirable? Clearly not. Example: "lets change the notion of educating our children, to never educating them" All changes are not desirable. Then ask: Is any change always desirable? No. Should the prospect of change be desirable? Sometimes. The answer depends on perception, intention and outcome. The only truth with almost near certainty is to state the following: Change can be desirable.
Equilibrium is always associated with a desirable state of affairs true or false?
true
How much heat energy would be required to bring a 15 kg block of ice from -20 degrees Celsius to steam at 120 degrees Celsius?
To bring the ice block to 0 degrees Celsius, you would need 150,000 Joules (Q = mcΔT). To melt the ice at 0 degrees Celsius, you would need 3,375,000 Joules (Q = mLf). Heating the water from 0 to 100 degrees Celsius would require 1,500,000 Joules (Q = mcΔT). Turning the water to steam at 100 degrees Celsius would need 10,500,000 Joules (Q = mLv). Finally, heating the steam to 120 degrees Celsius would require 600,000 Joules (Q = mcΔT). In total, you would need 15,125,000 Joules of heat energy.
What objective is always desirable in human movement?
Efficiency is always a desirable objective in human movement. It allows individuals to achieve tasks with minimum effort and energy expenditure, enabling better performance and reducing the risk of injury.
Is roast beef a summer food?
This is a personal opinion: I wouldn't consider it a summer food, because in order to prepare 'roast beef' of any kind, you must heat your oven. Heating your oven in summer isn't always desirable, especially if the temperature is already hot.
Is economic growth always desirable?
Yes but not always but mostly yes but sometimes no however it is normally yes but could be no yes and no
How many joules are in 56 kilo joules?
There are 56,000 joules in 56 kilojoules. This is because there are 1,000 joules in a kilojoule.
How do you convert from killi joules to joules?
To convert from kilo joules to joules you have divide by 1000 as 1 kilo joule is equal to 1000 joules. E.g. 2 kilo joules equals 2000 joules.
Can a heating contractor install a new heating unit?
Yes, absolutely! When it comes to installation of underfloor heating, it is always best to ask for assistance from the experts!
