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What is the current flow in a 12VDC circuit with two 24 ohm resistors in parallel?
In a parallel circuit, the same (supply) voltage will appear across each branch. So, in your example, 12 V will appear across each of the 24-ohm resistors.
To find the current through each resistor, then, you simply divide the supply voltage by the value of that resistor.
Since the supply current is the sum of the two branch currents, to find the supply current, you simply add together the currents passing through each resistor.
What else can I help you with?
Which is worse stray current with 110 volt or stray current with 12 volt leakage?
It all depends on the application; 12Vdc leakage in a vehicle can be a real pain to figure out, and 110Vac leaking in your house or industrial appl can waste power and cause unexpected operation.
Can you replace a transformer with an input rating of 120VAC 60Hz 12W and output rating of 12vdc 500mA with one that has an input rating of 120vac 60hz 25w and an output rating of 12VDC 1A?
Yes, you can. Here's why. If a supply's output is rated at 12 volts DC (12 VDC) and 500 milliamperes (500mA), it can deliver a maximum of 500mA at the 12 volt rating. You want to use a 12VDC supply that is rated at 1A (1000mA). That means that the supply is capable of delivering up to 1A at 12VDC. Now the crux of the matter. Your device, that's the load on the supply, needs 12VDC to operate. Your replacement supply is rated at 12VDC. No problem. Your supply delivered a max of 500mA. That does NOT mean that your load, that thing you're powering up, actually uses all 500mA. Your load knows how much current it needs to draw. Your supply has to be rated for more than that. Your supply was rated at 500mA. It worked well. The supply you wish to use will deliver a max of 1A (1000mA). It will easily supply the current your load will use. Oh, and the polarity of the new supply must be the same as that of the old one. That's pretty obvious. Always be safe and consult an electronics specialist for electrical questions. There are a number of savvy folks working at consumer electrical outlets who can get you up to speed.
Why DC-DC converter is used in telecommunication power supply instead of inverter?
DC-DC conversion offers the advantage of a bifurcated power source. AC can be rectified and filtered to supply power under normal conditions at say, 17VDC fed to a 9VDC regulator to power the circuit. A 12VDC battery can serve as an alternate feed to the circuit for times when the AC source fails -- and it is connected to the same 9VDC regulator. Another benefit of DC-DC conversion is isolation to the circuit from noisy events.
What is the voltage range for an auto with a 12vdc nominal electrical system?
You should be getting 14 volts from the alternator.
Can you use a 15v dc 400ma for 12v dc 750ma?
In general no, it might do some damage to both the equipment and the power supply. In certain specific cases it might be all right if you are able to measure the current to make sure it is 500 mA or less, and you can also ensure that the appliance can withstand 15 v.
How much current will flow in a circuit with a 12 VDC source connected to a 1K load?
In a 12VDC circuit with a 1K load, there will be 12ma of current. (Ohm's law: Volts = Amps * Ohms, so Amps = Volts / Ohms.)
What does 12vdc power mean?
It stands for "12 volts, direct current".
What is the minimum wire gauge acceptable for a 150watt 12VDC circuit?
I'd recommend the table at: http://www.windsun.com/Hardware/Wire_Table.htm
How much 12vdc amperage is needed to make 120 vac 9.5 amps?
To convert 12VDC to 120VAC at 9.5A, you will need a minimum of 95A of 12VDC current. This calculation is based on the premise that power remains the same in both systems (P=VI), ignoring inefficiencies and losses in the conversion process.
Can you use 12VDC in New Zealand?
Almost all cars in NZ have 12VDC electrics. Most portable generators which produce 230VAC, will also have a 12VDC accessory output for battery charging, etc. There are no general reticulations of 12VDC.
What size resistor to drop 12 vdc to 2vdc?
it is better to use zener diodes or transformators in order to drop 12 vdc to 2 vdc. If you do it with resistor you will waste you power. Voltage formula for resistors in series V1+V2+........+Vn=Vtotal, so 2Vdc+i.R=12Vdc. Determine the current for you supplier and calculate the value of resistance.
How can i make a winding of a transformer of an inverter of 12vDC to 240vAc?
850va 12vdc inverter transformer praemari tans
How do you produce 12V adapter?
From what? If you need 12VDC for temporary use, there is a very good 12VDC source in your PC power supply.
How does a dual battery set up on a 2000 3500 Chevy truck work?
they are in parallel they both drain and they both charge. unless u have a cabin\engine compartment switch you cannot isolate them. if you do one will not charge and then you will need it and it will be dead. parallel = 12vdc and series = 24vdc and smoke!
How do you keep an refrigerator running after the inverter begins to invert 12vdc to 120 ac?
I am assuming you are trying to run a refriderator on a 12vdc inverter. These units are very inductive, so they start with a great deal of current. A 1000 watt refrigerator may need 3000 watts to start. There are three possible solutions. 1. Buy a larger inverter 2. Get an inverter with "soft start" This limits current for a few cycles and lowers overall start current. 3. Turn off everything else why you start the unit. (this will need to happen every cycle of unit) Your current load at 12vdc is going to be very high. I use aluminum bus bars to tie my batteries together. This is a better conductor then copper and reduces heat. remember that for every amp on the 110VAC side you will see 10 amps at the 12vdc side. You will have serious hot spots if you do not have solid connections and bus bars.
Is there a led you can connect to 12vdc?
No, not directly. A l.e.d. has to have the current through it limited to a safe value. This can be done with a simple series resistor or by operating the l.e.d. from a current source rather than a voltage source. Some l.e.ds are supplied in a housing which has an in-built current limiting resistor.
Can you plug in a 12 vdc fan to house current outlet?
If you do it will burn the winding immediately and make the fan inoperable. So, No, don't plug in ANY 12VDC device into a 120 outlet.
