What is ac and DC supplies?

AC and DC supplies are two different types of electrical power sources. AC (alternating current) is a type of current that flows in one direction and then reverses direction. This is the type of current that is used in most household outlets. DC (direct current) is a type of current that flows in only one direction. This is the type of current that is used in batteries.

Here is a table that summarizes the key differences between AC and DC supplies:

| Feature | AC | DC |

|---|---|---|

| Current flow | Alternates direction | Flows in only one direction |

| Voltage | Can vary over time | Constant |

| Frequency | Measured in hertz (Hz) | Not applicable |

| Power factor | Can be less than 1 | Always 1 |

| Efficiency | Can be less than 100% | Can be 100% |

AC supplies are more common than DC supplies, because they are easier to generate and distribute. However, DC supplies are more efficient and can be used to power devices that require a constant voltage.

Here are some examples of devices that use AC power:

* Light bulbs

* Appliances

* Computers

* Televisions

Here are some examples of devices that use DC power:

* Batteries

* Solar panels

* Wind turbines

* Electric vehicles

AC and DC supplies are both essential parts of our electrical infrastructure. They provide the power that we need to run our homes, businesses, and industries.