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What is the result when a 400v device's load is connected between the two phase legs of a 3 phase distribution?
It works normally. Well actually there are 380 volts across two lines of a 3 phase AC source, so it should work normally.
Can you run single phase 230 from one side of 480 volt 3 phase?
No, you will not obtain 230 volts. From a wye connected three phase 480 volt supply, 277 volts can be obtained from one phase leg and the neutral on the wye connection. 480 volts/1.73 (sq. root of 3) = 277 volts.
Four loads are connected in series across 120 volts dc 3 amperes current exists one load fail to operate?
Your description of the system is either contradictory or incomplete, therefor no answer can be given.
3.0 kV is equal to how many volts?
3 Kv = 3,000 volts.
How does a zener diode operate when connected as a protection device?
Zener diodes attempt to keep the voltage across their terminals constant. They are often used in power supplies to regulate output voltage to 3, 9, 12, 15, etc. volts. Unlike a typical diode, current may be allowed to flow in either direction to regulate the output voltage.
Why are batteries placed in a flashlight the positive terminal of one is connected to the negative terminal of the next?
Because they are connected in series. Lets say you have a flashlight that holds 2 D cell batteries. Each battery puts out 1.5 volts. Connect them in series and together they put out 3 volts. The flashlight is designed to run on 3 volts. A electronic device that uses 4 AA batteries is using 6 volts even though each battery is only putting out 1.5 volts. Connected in series you add to the voltage with the addition of each new battery.
If 3 1.5 V cells were connected in series what would the total voltage of the circuit be What about in Parallel?
4.5 volts in series; 1.5 volts in parallel.
What is the result when a 400v device's load is connected between the two phase legs of a 3 phase distribution?
It works normally. Well actually there are 380 volts across two lines of a 3 phase AC source, so it should work normally.
Can a device requiring 12 volts and 3 amps run with an adapter providing 12 volts and 2 amps?
No. Your power supply must be able to supply rated voltage (12 volts) and rated current (3 amps).
Can a device using 4.5v 75mA use a adapter at 3v 1000m?
Unlikely. 3 volts in stead of 4.5 volts is a too big gap between that it gets and what it expects.
A 9.0V battery is connected between two parallel metal plates 3.0mm apart What is the magnitude of the electris field between the plates?
9/3 = 3 volts per millimeter = 3,000 volts per meter.
Can you run single phase 230 from one side of 480 volt 3 phase?
No, you will not obtain 230 volts. From a wye connected three phase 480 volt supply, 277 volts can be obtained from one phase leg and the neutral on the wye connection. 480 volts/1.73 (sq. root of 3) = 277 volts.
What is amp-hr of three 3 volts dc battery connected in parallel?
According to me the information about the 3 Volts DC batteries is incomplete i.e.The amp-hr capacity is not provided.If this is known then the answer would be 3X the amp-hr .
What is the difference between a 9v 300mA Adapter and a 12v 300mA Adapter?
difference is 2.7 amperes in numbers will be 12 volts 3 amps and the other will be 12 volts .3 amps
A voltmeter is connected to the terminals of a battery that has emf 12.0V and internal resistance 3.00 ohms The battery is not connected to any other external circuitry What is the vmeter's reading?
The voltmeter would read 12 volts. An ammeter connected to to battery would only read 4 amps (12 volts divided by 3 ohms =4)
If four lamps are connected in series to a 3 volt battery how many volts are impressed across each lamp?
If all four lamps are identical, there will be an identical voltage drop on each. 3 volts / 4 lamps = 0.75 voltage drop at each light.
What is 12V-3A?
Twelve volts, 3 amp hours is the rating for a battery. That means it is rated for 12 Volts DC and will operate for three house at one amp. or If it is makered on an electrical item. It is rated to run on a 12v supply and will draw 3 Amps when connected.
