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They are called I squared R losses. That is the formula for calculating power (P) in watts. P=I^2*R. I equals current in amps. R equals resistance in ohms. Also if the voltage (E) is known the formula is P=E^2/R. The current of electrons meets the resistance of the coil wire. That results in heat in inductor and transformer coils.
What else can I help you with?
Is heat produced or absorbed when alkali metals react with water?
Produced, in great abundance!
Is heat produced by nuclear fusion causes stars to glow true or false?
True. Heat produced by nuclear fusion in the core of stars causes them to shine brightly and emit light and heat into space.
When heat is produced in a reaction what kind of reaction is this?
exothermic
If heat is produced by a chemical system?
If heat is produced by a chemical system, it means that an exothermic reaction is taking place. In an exothermic reaction, heat is released to the surroundings as a byproduct of the reaction. This can result in an increase in temperature of the system.
What can absorbed or produced as the result of a chemical reaction?
heat, light
What type of energy stored in inductor?
heat energy
What is the maximum inductor voltage when the inductor current is decreasing?
depending on the stray capacitance it can be from a few ten volts to a few kilo volts.
Is it possible to heat coil using dc power supply?
Yes, it possible to heat a coil using dc power supply. An inductor resists a change in current, proportional to voltage and inversely proportional to inductance. The equation of an inductor is di/dt = v/L An ideal inductor, if connected to an ideal DC supply, with ideal conductors, would ramp up current in a linear fashion without limit, eventually reaching infinity amperes after infinite time. Since no inductor is ideal, nor is any DC supply, nor is any conductor, the current would reach a maximum based on the capacity of the DC supply and the DC resistance of the inductor and conductors. Since the DC resistance of the inductor is also not zero, this means, by Ohm's law, that the inductor must dissipate some power. That will cause the inductor to heat up.
What is the relationship between inductor resistance and the efficiency of an electrical circuit?
The resistance of an inductor can affect the efficiency of an electrical circuit. Higher inductor resistance can lead to energy loss in the form of heat, reducing the overall efficiency of the circuit. Lower resistance inductors are more efficient as they waste less energy.
Why is an inductor used for?
what is an inductor used for
How do you increase the inductance in a inductor?
Since we know that inductance of an inductor depends on the length of inductor by the formula L=muAN*N/l, where l is the length of inductor. So by varying the length of inductor we say that inductance of inductor varies.
What is the definition of an inductive reactance?
Opposition to the flow of AC current produced by an inductor. Measured in Ohms and varies in direct proportion to frequency.
Why does charge developed by induction disappear quickly?
"Charge?" The field produced by an inductor exists ONLY while the current flow is changing,
Suppose no energy given to inductor and a decreasing current is applied to it. emf will be produced and energy is given by it.so i think energy is not stored in inductor. it is its own property?
How do you propose to connect a decreasing current to the inductor ? The initial current through the inductor is zero, and you want to connect it to a current which is not zero and decreasing. At the instant you make the connection, the inductor current is zero, and it must rise to the non-zero value where you want it to begin decreasing. The current in the inductor cannot change from zero to something in zero time. As it rises from zero to the initial value, guess what . . . the inductor is storing energy in its magnetic field, while producing the usual voltage equal to [ L di/dt ].
What percentage of radiation is produced in comparison to the amount of heat produced?
The percentage of radiation produced compared to the amount of heat produced depends on the source of heat. For example, in a typical fire, about 70-90% of the heat produced is in the form of radiation. In contrast, for electric heating sources, the percentage of radiation produced is lower as most of the heat is convective.
Where solar heat is produced?
Solar heat is produced by stars. The people who live on Earth get their solar heat from the sun.
What is produced when energy transformation is produced?
heat
