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if you have 12v dc then you can use a 4 ohm resistor

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16y ago

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What resistance is needed to reduce 5V DC to 3V DC?

12v dc to 3v dc


How you convert a power supply into 12v DC?

DC 12V power supply can convert 110/220V AC power source to 12V DC.


How do you convert 24volts to 12 volts?

If you want to convert 24v AC into 12v Ac, it's simple. Just get a transformer to convert 24 volts into 12 volts. This is called a stepdown transformer. If you want to convert 24v DC into 12v DC, it's more complicated. First you have to change the 24v DC into 24v AC by a switching converter that changes DC into AC. Then you would use a stepdown transformer as in the former example. Once the 24v AC is converted to 12v AC, then you use a rectifier bridge to change the 12v AC into 12v DC.


Can you recharge a 3V battery with 12V charger?

It is not recommended to recharge a 3V battery with a 12V charger as this may damage the battery. The voltage of the charger should match the voltage of the battery to avoid overcharging and potential safety hazards. It is best to use a charger specifically designed for the 3V battery.


Can you use an AC adaptor - 3v dc 800 ma to replace AC adaptor - 9 v DC 250 ma?

no, must be 3v


What kind of chargers have a 12v DC output?

Battery chargers have a 12v DC output.


How much resistance required to convert 12V DC to 10.5V DC?

How much current? Volts/Amps = Ohms. In your case Volts = 1.5


How do you convert 12v DC to 5v DC?

Simple use a 2.25 ohm 25watt ballast resistor;renault used them to drop the voltage for the Engine control computers.


How much resistance required to convert 12v DC to 6v DC?

Use a 2.25 ohm 25watt ballast resistor;renault used them to drop the voltage for the Engine control computers.


How do you you convert 3V p-p to Vdc?

To convert a 3V peak-to-peak (p-p) AC voltage to a direct current (DC) voltage, you would typically use a rectifier circuit followed by a smoothing capacitor. The peak voltage of the AC signal is 1.5V (since p-p is double the peak), so the average DC voltage after full-wave rectification would be approximately 1.5V multiplied by 0.9, yielding about 1.35V DC. However, the exact DC output will depend on the efficiency of the rectification and filtering process used.


What resistors are required to reduce 12V dc to 3V dc with a LM317t positive adjustable voltage regulator?

a there many value to choose from as long as there is at least 50 m amps of bias flowing to the adjust input. the calculation start with known factors like the regulator out put is 1.25 then the rest is just a matter of mathematics


What resistance is needed to reduce 12V dc to 5V dc?

7K ohm