brokencross
16-Mar-08, 09:20
In these days of high energy costs and persistent lectures about switching TV's, DVD's etc OFF-OFF rather than to standby; I understand that bit because electricity is actually being used to keep components "warm".
They also say you shouldn't leave your mobile phone charger plugged in; I thought current had to actually flow to use energy so if the charger is NOT connected to, and charging the phone, where is the current flow and energy use.
I know it won't actually save the planet or lots of money but if I am going to do something I like to know why; so I would be grateful if a boffin type among you, can explain why a phone charger left plugged in, but not attached to the phone, uses electricity. Thank You.
They also say you shouldn't leave your mobile phone charger plugged in; I thought current had to actually flow to use energy so if the charger is NOT connected to, and charging the phone, where is the current flow and energy use.
I know it won't actually save the planet or lots of money but if I am going to do something I like to know why; so I would be grateful if a boffin type among you, can explain why a phone charger left plugged in, but not attached to the phone, uses electricity. Thank You.