Why is AC better than DC?

In AC, the frequency changes from country to country. It is basically taken as 50 Hz to 60 Hz depending upon the country whereas there is zero frequency in DC.

AC carries a current which varies with the time whereas, in case of DC, the magnitude of the current is constant.

A passive parameter does not require any energy to operate and also, it is not a source of energy. AC and DC have varying passive parameters. In AC, impedance has a significant role whereas, in DC, only resistance is the passive parameter.

Also Read: What are the different types of losses in Electrical machines?

The power factor of the AC lies between 0 and 1 whereas, for DC, it is always 1.
AC is of many types including sinusoidal, trapezoidal, square and triangular, whereas the DC is of two types, i.e. pure and pulsating.

Moving further, now you must have gained enough knowledge and a better understanding of how AC is better than DC. Transformation of the AC between voltage level is easier, thus making the high voltage transmission attainable. Whereas DC is found in most of the electronic devices. These two forms of current do not mix together very well and for using the electronics by connecting them to the wall outlet, the conversion of AC to DC is necessary. Even if the device contains AC, then also you should be mastered at working on more complicated circuits. After reading this article, I hope now you have understood that why AC is better than DC.


  1. Shaker February 12, 2018
  2. Shaker February 12, 2018
  3. sal February 13, 2018
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