Satate one main differnce between AC and DC ?why AC is preffered over DC for long range transmission of electric power .name one source each of AC and DC
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Both AC and DC describe types of current flow in a circuit. In direct current (DC), the electric charge (current) only flows in one direction. Electric charge in alternating current (AC), on the other hand, changes direction periodically. The voltage in AC circuits also periodically reverses because the current changes direction.
Most of the digital electronics that you build will use DC. However, it is important to understand some AC concepts. Most homes are wired for AC, as AC also has some useful properties, such as being able to convert voltage levels with a single component (a transformer), which is why AC was chosen as the primary means to transmit electricity over long distances.
Most of the digital electronics that you build will use DC. However, it is important to understand some AC concepts. Most homes are wired for AC, as AC also has some useful properties, such as being able to convert voltage levels with a single component (a transformer), which is why AC was chosen as the primary means to transmit electricity over long distances.
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