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Why do some computer auto start when power cable is plugged into the socket even though the power button is not turned on?
A power strip (also known as an extension block, power board and by many other variations) is a block of electrical sockets that attaches to the end of a flexible cable and allows multiple electrical devices to be plugged in. As such it can be considered a type of trailing socket though that term is more often used for single and double cable mounted sockets. The term is also used to refer to the complete assembly with the power strip on one end and a plug on the other. Power strips are often used when many electrical devices are in proximity, such as for audio/video and computer systems. Power strips often include a circuit breaker to safely limit the electric power flowing through them.
Which devices should not be plugged into a UPS?
Answer: Any device which exceeds a computer's VA/Watt rating should not be plugged into the outlets. Most printers can be plugged into a power strip. A laser printer, however, should be plugged directly into the wall.
Do household battery chargers draw electrical power when not charging but remain plugged in?
Everything that is plugged into the mains socket and switched on will use electricity even if it's a battery charger with no batteries in. So yes they do draw electrical power from the mains.
Will a USB docking station charge your laptop without the laptop being plugged in to the power supply?
no
Memory that loses its contents when the computer power is turned off?
Random Access Memory (RAM) is the kind of memory that loses its content when the computer power is turned off.
Are power- saving devices like the ones you plug in outlets true?
It is true that power saving devices that are plugged into outlets will use less electricity than devices that are not specifically ENERGY STAR rated. Some devices will draw a small amount of electricity even when not turned on.
Does an electrical receptacle draw power?
No the receptacle itself does not consume any power it is just a source of power. No amperage is used until the load is plugged in and turned on. Appliances plugged in with the switch in the off position draw no current. Devices that do not have an off- on switch will start drawing power as soon as they are plugged in. Once an appliance is switched on you are billed for the use of the electricity.
USB ports allow for devices to be plugged and unplugged with the power on This is ability is called devices?
Hot swappable
Do USB outlets waste power when devices are left plugged in but not charging?
USB outlets do consume a small amount of power when devices are left plugged in but not charging, but the amount is typically very low and considered negligible.
USB ports allow for devices to be plugged and unplugged with the power on?
Yes, in Windows XP Plug and Play was first introduced to allow devices such as the USB to be plugged in while powered on.
Does your appliance use power if it's plugged in but turned off?
It actually does a little bit, but not as much as being turned on.
What is the definition of phantom load?
Phantom load, also known as standby power or vampire power, refers to the energy consumed by electronic devices when they are turned off but still plugged in. This can account for a significant portion of household energy consumption and can be reduced by unplugging devices or using power strips to completely disconnect them from the power source.
What is electric ghost power?
This is also known as phantom power or vampire power. Even though an electric device is turned off, it is still drawing a small amount of power. A television, for example, continues to draw power so that it can sense the remote control to turn it on, or to keep the time. Other examples are chargers left plugged in for telephones, video games, etc.
Does a lamp use power when turned off?
Yes. Not as much but if it is plugged in it will still use some power.
Does the energy company charge for appliances and lights that are plugged into electical outlets even though the appliance or lamp is not turned on?
Not unless there is some sort of power drain...little lights, or clocks, or anything needing a continuous power supply to maintain integrity.
USB ports allow for devices to be plugged and unplugged with the power on This is ability is called?
The ability that allows USB devices to be plugged and unplugged with the power on is called hot-pluggable. The ability to use new devices without going through any type of configuration is called plug and play.
What are two devices plugged into the motherboard?
All of these are connected to the motherboard:CPUHard DrivesCD/DVD optical disc driveGraphics CardYou can also argue that the power supply is plugged into the motherboard to supply power to it
