Difference between AC And DC

Difference Between AC And DC

Edited By Team Careers360 | Updated on May 27, 2022 02:30 PM IST

Electric current flows to one side or continues to change its direction from time to time. Therefore, there are two current flow paths, namely alternating current (AC) and direct current (DC). The main difference between ac and dc current is that the electric current flows slowly to one side of the direct current (DC). However, the current continuously varies in its direction from front to back and vice versa. Learn more about the points separating between Ac and dc current.

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What are AC and Alternating current examples?
What are DC and Direct current examples?
How to convert AC current to Direct current?

NCERT Physics Notes :

What are AC and Alternating current examples?

AC definition and AC meaning: Ac full form is Alternating Current in Physics, which is popular for office electronics, household appliances, and more. The critical difference between the alternating current is in the direction of the electric charge. In AC, electrons continue to change their signals from front to back from time to time.

The current curve when drawn on the graph represents the sine waveform and the Other common AC waveforms are the square wave, the ramp, the sawtooth wave, and the triangular wave. Compared with current DC, it is easier to produce and distribute AC over large distances. Therefore, current exchanges are widely used in buildings, power plants, and more.

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What are DC and Direct current examples?

DC definition and DC meaning: DC full form direct current when there is no change in the direction of current flow. Therefore, the main difference between the Ac and dc current is that the electric current flows only in one direction to the stable current of DC. One of DC's main uses is to charge batteries and power supplies for power supplies. The primary source of DC is produced by photovoltaic cells, batteries, or electric power cells etc.

Direct current diagram

The picture above shows that the current flow is straight to the other side. The graph shows the balance between DC magnitude and time.

Anything that uses an AC adapter while connecting to a wall or running on a battery depends on the direct current. Some of the DC models include lamps, cell phone batteries, electric cars, and more. With the difference between the current AC and the current DC, it is easy to understand why AC is so targeted in so many applications.

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How to convert AC current to Direct current?

There are several cases where it is necessary to convert AC to DC. It is because of the differences between Ac and dc current that the current may be preferred over long distances. To convert AC to DC, electrical power containing the converter is required. It is later converted to the current one directly with the help of a modifier. AC conversion to DC is beneficial in preventing current flow from receding. The filter applied eliminates the current impact of the output.

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Frequently Asked Questions (FAQs)

1. Why can't AC replace batteries instead of DC?

It is important to understand that batteries do not store energy directly in them. They usually store electrical energy in the form of chemical energy. The positive AC source signal is connected to the positive battery port and the negative AC source signal is connected to the wrong battery circuit. It is currently beginning to flow. However, the AC changes its magnitude and there is no power supply itself. This is because a straight half cycle cancels a bad half cycle. If left unchecked, this operation could damage the battery. Therefore, AC is not stored in batteries.

2. What are the advantages of AC over DC?

The following are the benefits of current exchange rather than direct current:

AC is less expensive and easier to produce than DC.

The distance covered by AC is greater than that of DC.

The power outage during AC transmission is small compared to DC.

3. Why is the use of AC power preferred over DC power?

There are two reasons why AC power consumption is preferred over DC power:

The power loss during AC power transmission is small compared to Dc voltage and this makes its installation easier when the converters are far away.

AC power has the advantage of increasing and decreasing as needed.

4. What will be the value of the energy factor in the region when it is resonance?

The value of the energy factor in the region where it is resonance will be 1.

5. Give reasons for the power loss in the transformer.