difference between single ac and dc
in this article we will study about the difference between ac and dc currents.
following points describes the comparison between (alternating current) and (direct current)
- The basic difference between alternating current and dc is the moment of electrons
- In case of dc the moment of electrons is steady of forward in direction whereas in case of alternating current the moment of electrons continuously moving upside and downside.As shown in the fig. the dc current makes a flat graph whereas in case of the alternating current current it makes a moving up and down side.
- The second difference between alternating current and dc currents is that dc current cannot travel over long distance without losses whereas alternating current voltage can safely travel over long distance without having losses.
- The third difference between alternating current and dc is that dc consists steady magnetism along the wire whereas alternating current consists of rotating magnetic field for the direction of flow of electrons.
- the alternating current voltage contains frequency of 50Hz or 60Hz depending upon the country that uses the frequency whereas dc voltage contains 0 frequency as it is always travel forward direction.
- The power factor of ac is lies between 0 and 1 but in case of the dc power factor is always 1.
- The magnitude of the ac current is vary with time whereas magnitude of dc current always constant with time.
- The ac wave has the following types of waves- sinusoidal, triangle, trapezoidal, square but in case of the dc waves are pure and pulsating.
- The source of the dc is battery or cell but ac is generated by ac generator or mains.