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No, they can't, they have to be powered up and down over several hours - especially nuclear power stations. This is why hydroelectric power stations are so useful to deal with surges in power demand, they can go from zero to full in seconds - Dinorwig Hydroelectric powerstation is the fastest, taking 12 seconds to go from 0 - 1,320 mw.

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What is SMPS and how does it work?

SMPS stands for Switched-Mode Power Supply. It is a type of power supply that efficiently converts electrical power by rapidly switching the power on and off. This allows it to regulate the output voltage and current while minimizing energy loss as heat. SMPS is more efficient and compact compared to traditional linear power supplies.


Why does a electric fan continue rotate for sometime even after the electric current is switched off?

An electric fan continues to rotate for some time after the electric current is switched off due to inertia. Inertia is the tendency of a moving object to continue moving until a force acts to stop it. The fan blades have rotational kinetic energy that keeps them moving even when the power is turned off.


Why are electromagnets used in power stations instead of permanent magnets?

Electromagnets offer the advantage of being able to be turned on and off, allowing for better control over the generation of electricity. This flexibility is important in power stations to efficiently regulate the generation of electricity based on demand. Permanent magnets are fixed in their magnetic strength and cannot be adjusted as easily.


What happens to an electromagnet when the electricity supplying it is switched off?

When the electricity supplying an electromagnet is switched off, the magnetic field produced by the electromagnet disappears. This means that the electromagnet loses its magnetic properties and no longer attracts or repels magnetic materials.


Why does an electric fan continue to rotate for some time even after the fan is switched off?

An electric fan continues to rotate after being switched off due to inertia. Inertia is the tendency of an object to resist changes in its state of motion. When the power is turned off, the fan blades still have momentum and will continue to rotate until the friction and air resistance slow them down and eventually stop them. The duration of the rotation depends on factors such as the fan's speed, blade design, and the materials used.

Related Questions

When you tune your car radio the stations clear when the engine is switched off?

it need a continuous 12volt power supply for the memory


What happens yo the data in RAM when the computer is switched off?

the information is lost after power is switched off.


How do you make sure power is turned off?

if the switch in the circuit is switched off, the power is turned off on the object.


A magnet can be switch on and off?

An electromagnet can - for example in scrapyards where a crane picks up a car with power on, then drops it when power switched off.


How can you get a dual-xd1222 audio recevier retain its memory once the car is turn off?

there are 2 power wires that go into the back of the unit. the yellow wire must always be directly connected to the battery. the red wire is switched; when this wire gets power it turns on. the yellow wire must get constant power so it can save your stations. think, you know how when you change the battery in your car or it goes dead you lose your stations and clock? this is because the yellow wire lost the constant power it needs to keep your stations


Is hydro power off the coast or on the land?

Yes. Hydro power stations are in the middle of countries


What is another name for memory when all data is lost if power is switched off?

RAM


What gases do nuclear power stations give off?

Nuclear power stations only give out steam. Unless there's been an explosion, They give out radioactive dust.


Why does your car radio not receive am stations?

The am stations might be too far away, the car's radio might be only able to pick up FM stations, there might be a lot of static in the atmosphere. There might be a lot of high mountains nearby that prevent picking up any am stations. It might be late at night and the nearby am stations have switched off for the night.


What is SMPS and how does it work?

SMPS stands for Switched-Mode Power Supply. It is a type of power supply that efficiently converts electrical power by rapidly switching the power on and off. This allows it to regulate the output voltage and current while minimizing energy loss as heat. SMPS is more efficient and compact compared to traditional linear power supplies.


What do the buttons on a Peugeot 307 gearstick do?

They are for increased power in lower gears and that can be switched on and off with those buttons.


Does a ROM memory lose its contents when the power is switched off?

No - RAM is designed as a temporary storage space, and loses its contents when power is withdrawn. In most designs, this happens when the computer is switched off, but in some designs, a small amount of power continues to be drawn even when the computer is "switched off" in order to maintain the RAM content. In other special design, batteries are used to provide RAM data retention over power outages.