0
Can you use a12vdc 2000ma power supply to power a 12vdc 1000ma device safely?
Wiki User
∙ 13y ago
Depending on what type of power supply it is there are a few options.
If the 2000mA rating means it'll supply up to 2000mA, you're already okay, although you should put a resistor in parallel with the device to safely dissipate extra power. You wouldn't want to exactly split the supply in case the device has current demand variations. It would probably be best to siphon off say, 750mA. Since it's 12 volts, from ohm's law: V = IR you'd want 12 = 750mA*R, or a 16 Ohm resistor. It would also have to handle the power output, where P = IV, so P = 12v*750mA = 9 W. This is a lot of power, but you could probably find such a resistor somewhere. (Try looking at sandstone power resistors)
However, if the supply is powering a sealed device (eg something you wouldn't open up and tamper with), I think you'd be better off just finding the appropriate power supply.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoYes, the mA number is the maximum amount that the adapter will safely produce. A 200 milliamps device is well within that range.
Wiki User
∙ 13y agoA: NO it will not. The circuit will only draw 220 ma even if the source is capable of delivering 1000 amperes
Wiki User
∙ 11y agois 9 dc 300ma can be used for 9dc 2.2a requirement
Wiki User
∙ 10y agoNo the voltage is too high at 12 volts to operate a 9 volt device. Even if the voltages were correct the 200 mA output is too low to operate a 1000 mA device.
Add your answer:
Earn +20 pts
Can you use a 220v outlet to plug a 110v electronic device into?
You cannot directly plug a 110v device into a 220v outlet. This can cause damage to the device or even create a safety hazard. You would need a voltage converter or transformer to safely convert the 220v outlet to the appropriate voltage for the 110v device.
Will a 30 watt transformer damage a device needing only 15 watts?
No, the rating of the transformer, in watts, is the maximum amount of energy that can be safely drawn from the device. Any wattage load up to that limit is safe to connect as long as the voltage is correct to the load.
How do you prevent a wire from getting hot?
An overheated wire is an indication that you've put too much current through the circuit. The device you're driving is pulling more current than the wire is capable of safely carrying. Either use a larger wire or use a device that pulls less current. There are no other choices.
How do you hook up a 4 wire double pole box from the power of a sub box with no neutral BUS?
If you have a "sub box" with no neutral supplied to it, then you can't safely wire a four lead receptacle as you can't provide the needed neutral, the grounded conductor, to the device your feeding.
Can you use a 12V 300mA on a device that require 12V 1.0A?
You might be able to, but you probably *shouldn't*. 1 amp is equal to 1000 mA. The device requiring 1.0A is listing the maximum amount of amps that the device will need from it's power supply. If it only delivers 300 mA, there's a chance it may still run, but it could exceed the current needed to run the device (which could shorten it's life, or burn it out immediately in the worst case scenario). I currently am using a 12v 500mA supply with a light-based device requiring 12v 1A, and while it does work, the source device (an adapter) gets extremely hot and could be a fire hazard. Stick with the recommended matching specs, or if you can't match, even 12V2.0A would be safer and preferred.
You have media player that uses 5.6v and 2000ma you want to use in your car with a car adapter that has 2000ma with voltage settings of 3v-12v can you safely use the 6v setting or not?
No, it would be unsafe to use theÊ6-volt setting with an media player requiring 5.6 volts. The proper amount of voltage is needed to make sure that the battery is not overheated from too much electric current passing through it.
Where can you obtain device drivers safely?
From the hardware manufacturer's website.
Will a 12v car battery safely work for 9V 3.5A device?
No.
Which utility is used to properly remove a device that is hot swappable?
Safely Remove Hardware
What is loading rate?
The maximum amperage draw or load that the device or wire can safely carry.
Which type of electromagnetic wave would be most useful for a device to warm food safely?
Microwaves
To protect the data on a USB storage device while removing it double-click the icon in the notification area before removing the device?
Safely Remove Hardware
How can a digital camera be safely removed from a computer?
If you are running Windows, you should be able to go to "My Computer", right click on the device, and select "Safely Remove." There is also an option on the taskbar (bottom right) that should look like a grey pendrive: click appropriate device and select "Safely Remove." If running on a Mac, you should be able to drag the device icon from the desktop to the trash (which should change to an eject symbol as you drag the icon)
How do you safely remove USB devices?
1) click on 'start' 2) click on 'my computer' 3) right click on your usb device's icon 4) click on 'safely remove'
What is an automotive lift?
A HydoMechanical or Pneumatic device that safely supports lifts and lowers vehicles for ease of access.
What is device managere?
Device manager is programme which is used to manage that all programs should run softly and safely so that user should not get stressed about computer programming
If your computer doesn't have a safely remove button is your USB devise still safely removed?
If there isn't a button, you can go to My Computer, right click the device, and in the menu, there should be an option to eject safely. If you remove it before you "safely remove" when you insert a pen drive you will the safety remove icon in your PC.
