Asked in Home ElectricityModification of Old Electrical WorkDrug Tests
Modification of Old Electrical Work
How do you test a 120v wall outlet?
Can you run a motor 120V 60 Hz 4Watts straight from a wall outlet?
How do you test a wall outlet with a multimeter?
Put the meter on AC Volts, 200V range. For residential US service you should have 120V between hot and neutral, 120V between hot and ground, and 0V between neutral and ground. Remember: narrow prong is hot, wide prong is neutral, round prong is ground. Don't set your meter to current or you will zap it. Reisitance shouldn't damage it, but the reading will be worthless. (If you don't know what you are testing for or how to use your tool, should you really be sticking things in a wall outlet?)
Asked in Computer Hardware, Computer Monitors
A desktop computer and a monitor together deaw about 1.2 a of current they lug into a wall outlet that is 120V what is the resistance in ohms of the computer monitor combination?
The combination will have a resistance of 100ohms, and will drew 144watts. But, the wall outlet will usually be fluctuating from 115V to 135V, 120V is't only a "reference". I suggest you measure it a voltmeter before doing any calculation. Then, you can use this formula (ohms law) to find the correct answer : R = V/I In our case : R(ohms) = 120V / 1.2A R = 100ohms
Asked in Home Electricity
How do you find out the power supply voltage from my wall outlet?
AC 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..
What happens if you plug a 120V appliance into a 240V outlet?
Why do I have 60v from 120v wall outlet?
How can you convert a 3 prong 240V appliance outlet to 120V without rewiring and replacing the outlet?
Why would only one plug-in work in a two outlet wall outlet?
How do you make 110v outlet to 120v outlet?
In the US, standard household receptacles are 120V, but historically they used to be called 110V. So the two are the same thing - at least in the US. Depending on the age of the electrical device the nameplate may say: 110v 115v 117v 120v and they all are referring to a standard household receptacle.
Asked in Modification of Old Electrical Work
Have a wall outlet that when you turn the light switch on the outlet has no power need help?
How much current will a 120 V wall outlet push through a 20ohm circuit A?
A 120V wall outlet will push 60 amperes through a 20 ohm circuit, generating 7200 watts of power in the process. That is a lot of power. Let me repeat. That is a lot of power. Don't even think about trying this in the lab. You are talking about serious energy here and risk of fire and injury or death, Besides, the question is loaded. There is no 60 ampere 120V wall outlet, The closest you could come would be a 60 amp 240V range or water heater outlet. Think about this very carefully. Stick a 20 ohm resistor in an ordinary 120V outlet, turn it on, and the resistor and the breaker are going to rush to beat each other before one trips or the other blows up. What if the circuit breaker failed? What if someone got hurt? What if someone died? Think about calling your parents and saying you've been arrested and charged with negligent murder, and that your entire career is ruined.
Asked in Sales and Customer Service, Technology
Will a food warmer requiring 120v warm up in a 110v outlet?
Can you plug in a single phase 120v plug into 3 phase outlet?
Asked in Electrical Engineering
If you put a 60W 120V bulb in a 120V lamp that has a transformer for 240V and plug it into a 240V outlet will it work or blow the circuitry?