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The side of the plug with the ground wire is or should be the negative and the side with just the center screws is the positive.
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The change from negative to positive and from positive to negative in an alternating current?
Is called AC voltage or current.
What is difference between positive current and negative current which current is used for generation of electricity?
Positive and negative are just directions. In AC the current changes direction 60 times a second. It is all the same.
What is the direction of the current?
Current flows from negative to positive for DC. AC the direction changes with the sinewave. eg. AC a frequency of 60Hz the direction changes 120 times.
Why is there a positive and negative terminal in electical device?
there are positive and negative terminal in electrical device who operate on dc power supply because they wont work if the connection is reversed. but devices who operate on ac usually dosenot have polarity marks .
What type of current is used to power electrical outlets in the US?
AC, alternating current is used to power electrical outlets in the U.S..
Do galvanometer has positive or negative terminals?
Absolutely not. The reason behind is that it shows currents (both ac and dc) which has a desired direction of flow of electrons.. So Galvanometer does not have any electrolytic terminals!!
In DC motors why you are connecting fuse to positive and negative terminal and in single phase AC motor why you are connecting fuse to phase line and neutral link to neutral line?
in ac supply both positive and negative cycles contain in single phase the fuse only required for supply side but in dc supply positive and negative seperated by two terminals so we provide two fuses.
The change from negative to positive and from positive to negative in an alternating current?
Is called AC voltage or current.
You are wiring a LED lamp through a transformer you have a polarized plug and you know positive and negative The transformer is marked live and neutral Does live correspond with positive or negative?
LED's are DC voltage. Transformers are AC voltage. There is no positive or negative on AC voltage. You would need a diode to change the AC to DC, then there would be positive and negative voltages.
Do ac capacitor have positive and negative polarity?
both
Can you represents three phase ac with positive and negative?
AC is normally referred to as active and neutral, while DC is referred to as positive and negative. "Can you represents three phase ac?" not sure what you mean here. Each of the three phases are active ( positive ) so you could not represent one of them with negative. Hope this helps.
Why does the graph of AC moves from Positive to Negative?
Because that's the definition of "Alternating Current" ... one which 'alternates' between positive and negative. If it didn't do that, then it wouldn't be AC. (Even if its instantaneous amplitude varied sinusoidally, if it always remained positive or always negative, it could be described as the sum of an AC plus a pure DC, or simply as a pulsating DC.)
If wall current is said to be alternating why does it have a positive and a negative?
AnswerThere is no positive and negative. There is hot and ground. The hot (120 volts AC) is in reference the ground (Earth).
What color is green positive or negative for DC?
green is ground regardless of ac or dc
How you can find positive and negative in a transformer?
There is no positive and negative on a transformer. Transformers will only pass AC (alternating current), due to the fact that induction will only occur with a moving field. The current has to be changing polarity and intensity continuosly, for the current to be induced in the windings. Both terminals on the output vary, with relation to each other. Put DC into a transformer and the coils will saturate, overheat and probably burn out.
Does a 220 volt ac contact get a positive and a negative?
A 220 vac circuit has 2 hot wires and a neutral. The neutral stays at 0 volts and the hot wires vary between positive and negative. When one is positive, the other is negative.
Why all telecom dc powered equipment is designed with negative inputs like -48 -60?
AC currents alternate from AC to DC in a constant wave. The DC current is a direct and consistent current demonstrated to the negative reading. AC traveling from negative to positive and DC traveling in negative.
