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Which machine have very less losses in electrical?
Transformer
What is the difference between an intermediate class to station class surge arrester?
Station Class: Station class arrestors are typically used in electrical power stations or substations and other high voltage structures and areas. These arrestors protect against both lightning and over-voltages, when the electrical device has more current in the system than it is designed to handle. These arrestors are designed to protect equipment above the 20 mVA range.Distribution Class: Distribution class arrestors are most commonly found on transformers, both dry-type and liquid-filled. These arrestors are found on equipment rated at 1000 kVA or less. These arrestors are sometimes found on exposed lines that have direct connections to rotating machines.
Why is less resistance for a conductor wire good?
Resistance in a wire restricts the movement of the electrons through the wire. This restriction transfers some of the energy contained in the electrons into the material of the wire and as this energy accumulates in the material of the wire the wire starts to heat. Therefore, there the energy that is transferred into the wire material is considered wasted because it is not available as electrical energy, which means the consumer who is using that wire is charge for the electrical energy that is waste. It the resistance is less in that conductor the consumer will save money.
What liquid absorbs heat quickest?
Setting aside heat capacity and other considerations, it will be the metal which can conduct the heat into itself the fastest. The property of a material that speaks to how fast it can transfer heat is called thermal conductivity by chemists, physics and engineers. Silver, copper, gold and aluminum top the list (in that order). A link is provided to the rest of the elements listed by thermal conductivity, and notice that the list starts with the least thermally conductive elements and goes to the most thermally conductive, which are at the bottom.
Is there any device that is 99 percent efficient?
Some electrical motors have achieved efficiencies up to 99.99% above 200W. Besides that, photon detectors have achieved 99% efficiency. Larger systems tend to be less efficient since heat loss can't be stopped completely.
Does Duralumin conduct heat?
Its heat and electrical conductivity are less than that of pure aluminium but much more than that of steel.
How does being a good conductor of heat and electricity make platinum useful?
Good electrical conductors are useful because they allow electricity to be transmitted greater distances with less loss. This greater efficiency allows more of the electrical energy generated to be used, reducing the amount that must be generated. Good heat conductivity is less useful than good electrical conductivity, but it does make it easier to keep wires and cables cool, which further increases their electrical conductivity.
How can electrical energy be saved by using double pane window?
Double glazing means the window is a better insulator. Winters, less heat will escape, so you need spend less energy on heating. Summers, less heat will get in so you don't need to run the A/C that much.
Less friction means more or less heat?
Less heat
What is a bad conductor of heat?
The elements or compound between which the force of attraction is less and they are not abele to transfer heat to the other bound compound or element and the material starts burning is called a bad conductor of heat for example....- wood , mercury
When a lamp is turned on electrical energy changes into what form of energy?
The older generation of bulb(one in witch heating metal coil was used) convert electrical energy into both heat and light energy and consume more energy as some energy is lost as a heat energy. The newer generation of electrical bulb (C.F.L.) convert almost all electrical energy into light energy and consume much less electrical energy.
Does a liquid become a solid when there is more heat or less heat?
less heat
Why LED uses less electrical energy?
LED uses less electricity because LEDs convert electrical energy into light more efficiently than standard light bulbs. The resistive wire in a standard light bulb wastes the energy supply as heat whereas an LED light does not.
Why is stainless steel a bad conductor?
Stainless steel is not a bad conductor, but it is not as good a conductor as other metals like copper or aluminum. This is because stainless steel has a lower thermal and electrical conductivity due to its composition, which includes elements that inhibit the flow of heat and electricity.
Why is the efficiency of a transformer less than 100?
Assuming you're asking about an electrical transformer... Electricity meets resistance as it flows threw the transformer. Some of the flow of the energy is converted to heat due to the resistance and you get less electrical energy out than you put in. Think of electrical resistance as similar to friction between two objects, say rubbing your hands together quickly and generating heat.
Explain the physical advantage for animals to roll up into a round shape in winter?
Less surface area; less heat lost.Less surface area; less heat lost.Less surface area; less heat lost.Less surface area; less heat lost.
Use of electrical ballast in hid lamp circuits?
Electronic ballasts are more efficient than magnetic ones. They use less power, generate less heat, and are quieter. They are also more expensive up front.
