Yes and No.
You have three types of adaptors:
constant current with variable voltage output.
constant voltage with variable current output.
constant voltage with constant current output.
What you are talking about is the latter. This means that the adaptor was created for a specific appliance requiring 12V/2A, which it will indeed use.
Heavier appliance will not draw enough current/voltage and will malfunction.
Lighter appliance will draw too much current/voltage and will overload/shortcircuit.
No. 220V adaptor can't control the output voltage, 110V appliance will be fry. Use instrument transformer or voltage regulator instead.
In some instances a charger can be used in place of an AC adaptor. The one thing to keep in mind is that the output of a charger is not filtered as other power supplies are. The output of a charger will have a high degree of DC ripple voltage.
A typical iPod uses 12 v at 1 amp, and with the adaptor for 110/220 v the total consumption is about 20 W.
Depends on what the output voltage on the converter is.
The bulb is marked with the power (watts) and the voltage. Divide the watts by the volts and you have the amps.
No. 220V adaptor can't control the output voltage, 110V appliance will be fry. Use instrument transformer or voltage regulator instead.
No, each device has a different input and output.
No.
No, Your original adaptor has an output of 3 amps or 3000 ma. As you can see, the one you want to use for a replacement adaptor only has 1000 ma output, one third of the current capacity that you need.
Yes an AC adaptors output can be AC. In order to change the output to AC a few components inside of the adaptor has to be removed. Pretty much all that has to be removed from the adaptor are the diodes. The gaps in the circuit then have to be bridged in order for the electricity to continue to flow to the output plug. However this can cause problems with the circuit causing the capacitors to explode. I dont recommend modifying an adaptor to output AC. Just go out and buy another one.
You have to purchase a separate adaptor for this. You can do av output, hdmi output and even connect it with AirPlay onto your Apple TV.
If the one you found has an output rating of 12 volts and at least 2 amps (also could be shown as 2000mA) it should work. Check to see if your device needs an AC or DC voltage and whether the one you found has the right rating on the adapters output.
Check the output voltage and mA capacity on the nameplate of the adaptor. The adapter will be useful on devices at that DC voltage and up to the mA capacity of the adaptor E.g. the nameplate may read Input: AC120 volts 5 watts. Output: DC 12 volts 200 mA.
If it is an adapter then logically it should be adapting from one thing to another so no the output will not be the same as the input.
input 230-240v output 12v-55va
No. Both the voltage and the current are too low.
RF Modulator - Convert video and stereo audio from an A/V component into a coaxial cable output Try radioshack.com