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Hint:The direct current is a unidirectional flow of current. Alternating current repeats itself after a certain interval of time. Therefore, it has frequency. Recall the other differences between AC and DC.
Complete answer:
To answer this question, let’s first see what is Direct current and Alternating current? In the direct current, the charges move in one direction. Thus, the direct current is unidirectional current flow. In alternating current, the charges reverse their directions periodically. Now, we can explain the differences between direct current and alternating current.
Note:Note that direct current and alternating current are the two different types of current but can be converted to one another by inverter and rectifier respectively. Also, we can store the DC but not AC. In our homes, the inverter stores the DC and provides AC.
Complete answer:
To answer this question, let’s first see what is Direct current and Alternating current? In the direct current, the charges move in one direction. Thus, the direct current is unidirectional current flow. In alternating current, the charges reverse their directions periodically. Now, we can explain the differences between direct current and alternating current.
Direct current | Alternating current |
In direct current, the current does not vary with time. Therefore, the graph of current versus time is a straight line parallel to the time axis. | In alternating current, the current varies with time and it is represented by sinusoidal waves. |
The frequency of the direct current is zero since it does not repeat after a certain interval of time and flows in the one direction. | In alternating current, the current has frequency since it is periodic in time. |
Direct current does not have polarity. | Alternating current has polarity that is positive and negative terminal. |
Direct current can be transmitted to a long distance with negligible power loss. | Alternating current can be transmitted to very long distances with some power loss. |
Note:Note that direct current and alternating current are the two different types of current but can be converted to one another by inverter and rectifier respectively. Also, we can store the DC but not AC. In our homes, the inverter stores the DC and provides AC.
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