Yes, a 12V 6A adapter is generally better than a 12V 4A adapter if you need more power for your device. The 6A adapter can supply a higher current, allowing it to support devices that require more energy or to operate multiple devices simultaneously without risk of overloading. However, if your device only needs 4A, using the 6A adapter will work fine, as devices only draw the current they need. Always ensure that the voltage matches your device's requirements.
No. If it works at all, it will be underpowered, and possibly damage the speakers. To power 12V speakers, you have to have an adapter with EXACTLY 12V (no more, no less), and at least 1A. You could hook up a 12V 4A adapter if you wanted to, your speakers would just only draw 1A of power. Make sure you use a 12V adapter though!!
yes it is
1a.
Because a lot of devices need less than 2 amps. Printers, 30 v 0.4 A, radios 6 v 100 mA, SEGA 12 v 1.2 A as examples. The cost can be reduced by having an adaptor that is designed for the right current.
3A or 4A schools are about the size of the students. 4A schools have more students than a 3AM school
(4a)2 or 16a2
4a*4a*4a = 64a3 cubic units
What is the additive inverse of -4a?
8
4a+2b+a
-4a.
a < -12