Difference between anode and cathode

Physics and Chemistry
2023-05-22T11:21:26+00:00

Difference between anode and cathode

Introduction:

Worldwide presence In electronics, one of the most frequent questions people ask is: what is an anode and what is a cathode?

Next, in this article we are going to delve into the difference between anode and cathode.

Anode:

The anode is the electrode into which the electric current enters on a device, whether it is a diode, a battery or any other type of electronic component. In other words, it is the positive terminal of a battery or power supply.

It is important to note that the function of the anode varies depending on the device to which it is connected. For example, in a diode, the anode is the terminal that connects to the positive terminal of a power supply, while in a battery, the anode is the positive terminal of the battery.

Cathode:

The cathode, on the other hand, is the electrode at which the electric current exits of a device. It is the negative terminal of a battery or power supply.

In a diode, the cathode is the terminal that connects to the negative terminal of a power supply, while in a battery, the cathode is the negative terminal of the battery.

Differences:

In summary, the main difference between anode and cathode lies in the direction of flow of electric current. At the anode, electric current enters the device, while at the cathode, electric current leaves the device.

It is important to note that the polarity of the terminals depends on the device and the type of voltage being used. Therefore, the polarity of the device should always be checked before connecting it to a power source.

Example:

An example of the difference between anode and cathode can be seen in the case of an LED. The anode of the LED is the longest terminal and connects to the positive pole of a power supply. On the other hand, the cathode of the LED is the shortest terminal and is connected to the negative pole of the power supply.

Conclusion:

In short, the anode and the cathode are two essential concepts in the world of electronics. By correctly understanding the difference between anode and cathode, you can have a clearer understanding of how electronic devices work and how to connect them correctly.

Summary list:

  • The anode is the electrode at which electric current enters a device.
  • The cathode is the electrode at which electrical current leaves a device.
  • The main difference between anode and cathode is the direction of flow of electric current.
  • The polarity of the terminals depends on the device and the type of voltage being used.
  • You should always check the polarity of the device before connecting it to a power source.

Always remember to take into account the polarity of the terminals when working with electronic devices.

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