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12v dc to 3v dc
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∙ 10y ago
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What resistance is needed to reduce 5V dc to 4V dc?
The resistance needed is1/(the current flowing through the resistance) ohms.
What resistance is needed to reduce 12V dc to 5V dc?
7K ohm
Is 10 plus 8v subtracted 3v equal 18 subtracted 3v?
10 + 8v - 3v = 10 + 5v
Factor by grouping 15v2-19v plus 6?
(5v - 3)(3v - 2)
Factor 15vsquared plus 52v plus 45?
15v2+52v+45 = (5v+9)(3v+5) when factord
What does the power supply unit do?
It takes the mains supply and converts it to various lower voltages, suitable for the electronics in the computer. Usually 5v 12v 3v
How do I reduce 2000 mA or 2 Amps with 5V down to 20 mA with 5V?
assuming 5v steady the 2 amps can be virtual zero by reducing the load present
How many amps does a 5v transformer draw?
There are actually three pieces to this puzzle - resistance. And you're missing that one.
What current will be needed to produce a voltage of 5V across a 12kΩ resistor?
Ohm's Law: Current = voltage divided by resistance. 5 V divided by 12 KΩ is 416 2/3 ma
Reduce the fraction -20t5u2v3 over 48t7u4v?
-5v^2 over 4(t^2)(u^2)
How many power supply uses in 8085 microprocessor?
+5v supply is alone needed for Intel 8085 Microprocessor
Your 3v ac dc adapter gives you 5 v can you put something in line to reduce it?
Yes it is possible to put in a regulator but it is probably unnecessary. Small power supplies are often unregulated which means that their output voltage will drop as the current draw is increased. A 3V adaptor is quite likely to deliver 5V when no load is attached but it will drop to something in the 3 volt region as soon as a load is applied to it. Of course, this means that the voltage output is unlikely to ever be 3V as every load will have a different effect on the voltage. Equipment manufacturers are aware of this feature of an unregulated supply and equipment is designed to cope with voltages that are rather higher than their ideal supply voltage. If it is vital that a 3V supply is obtained without variation, small regulator integrated circuits are available for less than $1. Radio shack or Maplin are good places to find them. A little electronics knowledge and some soldering skills will be needed to use one. For novice electronics engineers: Make sure you properly understand what you are doing before connecting anything to a mains supply. Seek assistance if you are at all unsure.
