No. The amperage describes the total electrical energyeither produced or consumed. Voltage just describes the potential. If the power cable or power supply are only capable of 1 amp and the device consumes 2 amps... sorry, you don't have enough electrical energy available.
Yes, the 2-amp power cable will supply enough power for a 1-amp device. However, you need to be careful that the fuse on the power cable is small enough to protect the 1-amp unit from damage if necessary.
Yes it will work with no problem whatsoever. There will still be 1 amp capacity in the power supply if needed for lagrer devices.
Yes. Keep the cord as short as possible to avoid a voltage drop. Use a larger cable for longer runs.
When connected to a normal power supply a UPS takes enough power to keep its battery charged and passes the power through to the device to which it is attached. When normal power fails the UPS uses its batteries to deliver clean power to the attached device.
No you can not use this power supply 12 V DC 500 ma instead 12VDC 1amp because this battery will not able to deliver sufficient power to that device which you want to power it from this battery and your device will not work fine or it will work with very poor performance.
No, a 500 mA supply can only produce a half amp maximum without going into an overload condition.
Uninterruptable Powersupply
Absolutely.As long as the converter (or any power source) is rated at the same voltage, with more current than the device needs.Sometimes, a device may have a higher initial current surge than it's operating current, keep this in mind. Some converters do a good job handling momentary surge, some don't.
Will a ATX power supply work with a ASUS motherboard?Read more:Will_a_ATX_power_supply_work_with_a_ASUS_motherboard
The simple answer is, No. But I'll give you the long answer, too. The power rating of most devices is the maximum power used under unusual circumstances. Most devices, unless it's something like a light bulb which is either on or off, don't use their max power 99% of the time. If you protect the circuit with a 1.0 amp fuse you protect your power supply and device and you can safely see if it works.
Most likely, yes. If your device requires 12 volt and draws 1 Amp of current, a 12 volt power supply will give the required voltage and will be able to supply the 1 amp of current it needs to run. A power supply that supplies a little more voltage might also work but depending on the device may cause the device to fail sooner. Much more than 12 volts will most likely destroy the device and result in a burning smell and smoke. A power supply for less than 12 volts may fail to power the device or may make it run slower. This would be like using a battery in a device and as the battery gets weaker, it supplies less voltage and the device slows down or a flashlight get dimmer till it stops working. A 1.5 amp power source is capable of delivering 1.5 amp of current to the device. If the device need less (only 1 amp), it still gets the amount it needs to function. If the power supply was rated at 10 A or 100 A, the device will still only use 1 A to function. If the power supply were rated at less than 1 amp. The device might not get enough current to run.
Your question is confusing, but if you are asking whether you can use a 9V/250 mA adapter to supply a load device rated at 5 V/1000 mA, then the rule is quite straightforward. The adapter's rated output voltage must match that of the intended load, but its rated current must exceed that of the load. So in your example, you cannot use the adapter with the intended load.
generally yes. if the voltage is the same. the current however may effect the device if the current is greater then the main device's listed current. For example if you try to use a 20v 3.42A power supply instead an individual laptops power supply rated at a 19v 2.5A the life of the device will be shorted by a lot. as they have sensitive circuits. I have fried a motherboard's power distribution sector by doing this. but i had a backup laptop of the same make/model so it didn't bother me. it lasted about 6 months after i initially/deliberately used the other power supply. if its a small difference the life span wont be drastically effected. if the power supply has too little current it will need to work harder shortening the power supplies life span. using the correct power supply will save a lot of time and hassle.
ok that process is really easy 1.press the power button make sure the device is off remove the batteries on the bottom unplugged the device from power supply after that only thing you need to do and make sure you do this otherwise wont work is toss it . !)
The terminology would typically reference a device such as a power supply, charger, diverter or transformer. The Input Voltage is the voltage supplied to the device to make it work. The Output Voltage is what the device supplies to an application. For example, a power supply for a laptop might convert 120 VAC to a voltage like 19.5 volts (A Sony Laptop) for charging a laptop battery.