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Why is there a positive and negative terminal in electical device?
The positive and negative terminals in an electrical device indicate the direction of flow of electrical current. Electrons flow from the negative terminal to the positive terminal, creating an electrical circuit. This polarity helps ensure that the device functions properly and efficiently.
What is difference between positive current and negative current which current is used for generation of electricity?
Positive current flows from the positive terminal to the negative terminal, while negative current flows in the opposite direction. In electrical systems, positive current is used for generating electricity as it represents the flow of electrons from negative to positive, which is the direction of conventional current flow.
What is the direction of the current?
The direction of the current refers to the flow of electric charge. In a circuit, current flows from the positive terminal of the voltage source to the negative terminal, opposite to the direction of electron flow.
What type of current is used to power electrical outlets in the US?
The type of current used to power electrical outlets in the US is alternating current (AC). It oscillates in both direction and has a frequency of 60 Hz.
The change from negative to positive and from positive to negative in an alternating current?
The change from negative to positive in an alternating current indicates a switch in direction of electron flow. This occurs when the flow of electrical charge in a circuit reverses periodically, creating oscillations. These changes in polarity enable the efficient transmission of electricity through power grids and enable devices to operate.
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.
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 is there a positive and negative terminal in electical device?
The positive and negative terminals in an electrical device indicate the direction of flow of electrical current. Electrons flow from the negative terminal to the positive terminal, creating an electrical circuit. This polarity helps ensure that the device functions properly and efficiently.
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
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.
If an AC begins rising positive as 0 degrees when will it reach its negative maximum current?
Maximum negative current is at 270 degrees.
