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Yes. You can use a voltage divider. Say, for instance, one 1KOhm resistor in series with a 3KOhm resistor. Connect the 3k resistor to the 48 volts and connect the 1k resistor to ground. The 1k resistor will have 12 volts acress it. These resistors need to be at least 1 watt each as they are going to dissipate 0.576 watts and get warm. Now, if you attempt to pull power from the 1k resistor, note that regulation will be poor because the impedance of the load will go in parallel with the 1k resistor and change its value.
What else can I help you with?
How many volts of electricity are in a phone line?
Phone lines operate at 48 volts when you pick the phone up to make a call and while talking, but 90 volts are sent to the phone you are calling to make the phone ring. This is a holdover from the old rotary phones that had the bells that were struck by a little hammer.
What is the current in a 12volt circuit that has 9 ohms of resistance?
Ohm's Law: Current equals voltage divided by resistanceIf the two 3 ohm resistors are in series, then 12 volts divided by 6 ohms is 2 amperes.If the two 3 ohm resistors are in parallel, then 12 volts divided by 1.5 ohms is 8 amperes.WARNING: In the first case, this is 24 watts or 12 watts per resistor. In the second case, this is 96 watts or 48 watts per resistor. Exercise great care if you intend to duplicate this in the lab, i.e. do not think for even a split second that a 1/4 watt resistor is going to be able to handle this power without burning up and causing a fire.
What is negative 48 volt DC voltage?
Negative 48 volt DC voltage is simply a voltage that is negative 48 volts with respect to ground. This voltage is widely used in telecommunication systems.
What would the voltage be in a DC circuit if there were a current flow of 6 A and a resistance of 8 ohms?
Ohms Law! E=IR Voltage equals current times resistance. Get out the old calculator...
What is the resistance of the 12 volt circuit and has a measured current 0.25 A?
R = E/I = 12/0.25 = 48 Ω
Is 100 amps 48 volts DC the same 12 volts DC?
No.
How do you reduce the fraction 36 over 48 to its lowest terms?
To reduce 36/48, find the common factors of the numbers (12), and divide them out. 36/48 = 3/4
How do you reduce 44 over 48?
11 over 12 (44 divided by 4 is 11 and 48 divided by 4 is 12)
How do you link 12 volt batteries to get 48 volts?
You must hook them up in series. You will need four 12 volt batteries to do this.
How do you reduce 12-36 to the lowest term?
48
A 12 volt circut with two 3 ohm resistors in parallel will draw how much current?
Two 3-ohm resistors in parallel have an effective resistance of 1.5 ohms.I = E/R = 12/1.5 = 8 AmperesNote: Use big resistors. The power dissipated by each resistor is E2/R = 48 watts !
When you have a linked 48 volt system can you use one of the 12 volt batteries as 12 volts or are they all 48 when linked?
You can pull 12 volts off of any single battery in the circuit. The output from each battery never changes, it's always 12 volts. Those batteries are wired together in SERIES to increase the final output voltage of the entire circuit to 48 volts. To demonstrate this, place a voltmeter across the positive and negative terminal of any battery in the system. It will read 12 volts, regardless of which battery you're measuring across. Now place the voltmeter from the positive terminal on one battery and the negative terminal on a different battery. Depending on how many batteries you're measuring across, it will read 24, 36 or 48 volts. Practical application - connect your 12 volt device from the positive terminal to the negative terminal on a single battery.
How do you install 12 volt lights on 48 volt cart?
In order to install 12 volt lights on a 48 volt cart, you will need to use a voltage reducer to step down the voltage from 48 volts to 12 volts. This will allow the lights to operate properly without getting damaged. You can connect the lights to the 12 volt output of the voltage reducer and follow the wiring instructions provided with the reducer for proper installation. Be sure to follow all safety precautions and consult a professional if needed.
How many batteries you require to get output of 48 volts?
You need to divide the 48 volts by the voltage produced by a single battery.
Can you parallel 4 sets of 6 volt batteries to get 12volts at the same time having the same batteries in series for a 48 volt laod?
Paralleling four sets of 6 volt batteries will still give you 6 volts. Two 6 volt batteries in series will give you 12 volts. Parallel these series sets will give you longer endurance at 12 volts. There is no way you will ever get 48 volts out of four 6 volt batteries.
What is the voltage of a telephone line?
48 VOLTS
When you link 4 batteries of 12volts for a 48 volt system why dont you use 1 battery of 24 cells?
If you have a 48 volt system, you link 4 batteries of 12 volts to get 48 volts. You do that because it is extremely easy to get 4 batteries of 12 volts. It is extremely difficult to find a store that sells a 48 volt battery. Most people with battery problems would prefer to simply replace the batteries and be on their way rather than stay in a motel and then pay overnight shipping fees to have a particular battery shipped from a particular warehouse.
