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How do you find out the power supply voltage from my wall outlet?
Wiki User
∙ 13y ago
If you're in North America, and you're using a standard PowerPoint (ie. a normal outlet - two vertical bars with a round pin beneath or above), then you've almost certainly got 110 to 125 Volts AC.
If you're in Europe or many places elsewhere - like Australia, for example, then it's possible that you've got 220 to 240 Volts AC.
Using a voltmeter, you can measure the voltage between the pins to determine exactly what voltage is provided.
I'd get an electrician or someone technical to do this for you - the power in the electrical outlet can be DEADLY. Do not attempt this unless you're qualified to do so!
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoAC power, 120v 60Hz in the USA. Can be measured at the wall outlet with a DMM set on AC volts. usually, the power supply output is DC. Example: A 5 Volt DC power supply, the 120V AC from the wall outlet goes to a step down transformer (in the DC power supply) then, the stepped down 5Volt AC power goes through a Rectifier which,
converts the AC to DC. The DC has ripples at this point. then, next stage there are
Capacitors which are storage devices. they provide smooth DC power. next stage,
regulation..
Wiki User
∙ 13y agoPlug in a lamp that you know works. The most common problem for an outlet that seems to have stopped working is one controlled by a Ground Fault Circuit Interrupter (GFCI). This usually happens in a bathroom where an outlet is controlled by a GFCI in another room.
Wiki User
∙ 16y agoThese days you can get deevices called voltmeters that if plugged into your electrical outlet, tells you the current flowing from the socket. You can know ot in Amperes, watts and volts.
Wiki User
∙ 16y agoThis is a hard question to answer, since there is no visual signs on the outlet themselves, but if you can find any type of appliance, the voltage rating _should_ be on that.
Wiki User
∙ 9y agoIt will either be on a 15 or 20 amp breaker.
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How do you find out the power rating of your power supply?
In America it should be 60hz. But you can hook up a power meter to the line and find out the real frequency and voltage of the common household or office power line. You may be surprised at the number of spikes and drops in voltage and frequency in a household line. A good UPS can some times tell you as well.
How do you find the voltage?
Using Ohm's law, you can find voltage if power is given. The equation needed to solve for power is P(Power)= Voltage(E) x Current(I). Ohm's Law describes the relationship between resistance, current, power, and voltage.
You suspect that a power supply is faulty but you use a multimeter to measure its voltage output and find it to be acceptable Why is it still possible that the power supply may be faulty?
Yes, it can be faulty. Some damaged power supplies show good output voltages on the voltage range of a multimeter but, when you connect them, they don't work properly. One possible reason is that maybe an IC in its voltage regulator has a high resistance between the common and the output. You cannot see this by shunting a voltmeter onto it. You have to place a typical load onto the output to test it.
What size conduit and aluminum wire for a 400 foot run for 200 amps?
The question can't be answered without knowing what the voltage is. That is because the allowed voltage drop is 5% of the supply voltage, so you need to know the supply voltage. Then the wire calculation aims to find out what the minimum size of wire is that produces that voltage drop or less.
How many amps does a 65 watt light bulb draw?
Find out your supply voltage, and divide 65 by it: I(amps) = P(watts)/V(volts) = 65/V
How do you find power in parallel circuit?
Voltage will be same in all branches. Voltage= Current * Total Resistance
Location of computer power supply in motherboard?
The power supply is usually always located at the top of the computer tower, to the back. Whats easy to find is whatever your power cord from the wall plugs into on the back of your computer, is your power supply box. From there, the power is reduced and sent throughout the computers hardware. (You'll also see that its the box with all the wires are coming out of, inside the computer)
Where Can You Find a 72w Constant Voltage LED Driver AC 90-240V?
This switching power supply is ideal for DIY projects like light bulbs, motors and other electronics. The output voltage is DC 12V constant voltage, which means that no matter what the state of charge on your battery is, this power supply will output the same voltage. This Switching Power Supply is a smart choice for your home or office working environment
How do you find out the power rating of your power supply?
In America it should be 60hz. But you can hook up a power meter to the line and find out the real frequency and voltage of the common household or office power line. You may be surprised at the number of spikes and drops in voltage and frequency in a household line. A good UPS can some times tell you as well.
How do you find open circuit voltage in circuit?
"Open circuit voltage" is a characteristic of a battery or power supply. You measure it exactly as the term suggests ... disconnect any load from it (or open the ON/OFF switch), and measure the voltage across the terminals of the battery or power supply while it's not supplying current to anything.
How can I find out what adapters I need for my speakers?
What is important is that the voltage written on your speakers matches the voltage of the power supply. If you check the manufacturers site or return to the store where you purchased them I am sure they can advise you on the right adapter.
How do you find the voltage?
Using Ohm's law, you can find voltage if power is given. The equation needed to solve for power is P(Power)= Voltage(E) x Current(I). Ohm's Law describes the relationship between resistance, current, power, and voltage.
How do you find the power factor with true and apparent power?
to put out the power fector you have to divided apparent power with true power.AnswerYou can determine the true power of any load using a wattmeter. To find the apparent power, you use a voltmeter to measure the supply voltage and an ammeter to measure the load current, and multiply the two readings together.If you then want to go on to find the power factor, then you divide the true power by the apparent power. If you want to find the reactive power you use the following equation:(reactive power)2 = (true power)2 x (apparent power)2
How do you find the power factor for a 240 V and 480 V single phase heaters?
Power factor is the cosine of the phase angle -i.e. the angle by which the load current lags or leads the supply voltage. Heaters are resistive loads (although not 'purely' resistive), which means that the load current is practically in phase with the supply voltage, making the resulting power very close to unity (1).
Will a switching power supply work on 277 volts?
Not unless it is rated for that voltage. You can likely find a step down transformer from 277 volt sto 120 volts.
How do you find voltage rating of zener diode?
It should be marked, either on the diode or on the box it came in. If you can't find the mark, then you have to measure it yourself. Take the zener diode, a battery or DC power supply, and a resistor. Wire them all in series, with the NEG (cathode) end of the diode closer to the POSitive side of the battery or power supply. Connect your voltmeter across the diode, and slowlyincrease the power supply output voltage while watching the meter. You'll see the voltage across the diode increase slowly, tracking the power supply, until you reach the Zener voltage. At that point, the voltage across the diode won't increase any more; it'll just stay there at its 'reverse breakdown' voltage, which is the Zener voltage. (If the voltage across the diode goes to around a volt and won't go any higher, the polarity is wrong. Reverse either the diode or else the power supply.) You probably want a wild guess at what the value of the resistor should be. That's difficult to specify if I don't know the power rating of the Zener diode you're testing. I'm going to make the following suggestion completely in the blind: Select the resistor to limit the series current to 30 mA even if you have to crank the power supply up to 50 volts. R = 50/.03 = 1.5 to 2 K-ohms, rated for a couple of watts.
How do you find the current draw of an electrical circuit if you do not know the voltage and wattage of the device?
Basically if you know the Voltage supply and the power used by an appliance then you use the formula for power which is Power = Volts x Amps. Rearrange so Amps (current) = Power / Volts If power was 2400 Watts and Volts was 240 the Current would be 2400 / 240 = 10 Amps
