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Do electrical devices that are plugged in but not turned on still consume electricity?
Wiki User
∙ 14y ago
Electronic circuits often contain filter circuits that are ahead of the power switch. These Filters contain capacitors between phase and neutral, so called X-Capacitors and between phase and ground respectively neutral and ground, so called Y-Capacitors. These capacitors in conjunction with the the applied alternating voltage are causing a current to flow.
Often built in over-voltage protection circuits have got an capacitance (even if it is low) and are causing a minor current to flow.
In the stricht sense even the power cord has got a small capacitance and causes a minor current to flow.
Wiki User
∙ 14y ago
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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.
Do electrical devices drain power when plugged in but not switched on?
some do, it depends. Tvs waste electricity because it would be easier to turn them on, not take really long. Lights dont.
How does a tv get its energy?
By being plugged into the electrical socket in the wall that gives it electricity.
What is an electrical bulb?
Bulbs are things that are plugged into light sockets, and they light up when the electricity is turned on.
What do you call the electricity consumed when the remaining appliances even plugged it off?
Residual electrical use.
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.
What is the difference between electronic devices and electrical devices?
All modern day computers are built using electronic or semiconductor processors and components, so these are electronic systems which of course need electrical power to operate but are not in general put under category of electrical devices.
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.
What is an example for electric energy?
An example of electrical energy is like when a toaster is plugged in or lightning and a light bulb. It's that simple
What source of energy does a computer use?
A computers energy source is electricity. When using a computer plugged in or not it is drawing electricity from the battery or from a plug which is connected into the PC and a wall outlet. When there is no electricity the computer cannot function.
A device into which several devices can be plugged?
hub
How can you make a laptop think it is plugged in when it really is not so the battery never runs out?
You need a new battery. They do wear out. The laptop needs electricity to run, either with the electrical cord or with the battery. You cannot "trick" it into thinking it is plugged in any more than you can "trick" a car into running without gasoline or a T.V. into running without electricity.
