The Concept Of Alternating Current

The most common example of the current electricity can be the lightning that travels from the sky to the earth. Also, clocks and torches are other examples which define current electricity. Further, the current electricity is classified into two types. These include the direct current, and secondly, the alternating current. 

Direct current flows only in one direction and cannot vary sporadically. The Alternating current is an electrical current that periodically reverses its direction. Most technology and related sciences students begin by studying about direct current. This can be because the bulk of the digital electronics that these students will construct will be powered by direct current. However, alternating currents and their ideas also are crucial to understand because they have numerous beneficial features and applications. 

Introduction to Current Electricity

Before understanding the concept of alternating current in Physics, having a deep understanding of current electricity is of utmost importance. Current electricity refers to the total time taken in which the electrons start to flow from point A of the circuit to point B. The current electricity in Physics is donated by “I”. 

Here, I = q/t = charge flowing/total tim, and

Instantaneous = dq/dt

Iavg = Δq/Δt

Introduction to Alternating Current 

In alternating current, the electricity current direction changes at fixed intervals. It changes its magnitude and polarity at fixed intervals due to the continuous voltage fluctuations. Alternating current is the more common and preferred electricity; hence, it is most commonly found in every household. 

On the other hand, direct current starts to flow only in a single direction, whereas the alternating current fractures its speed: firstly, it increases to the maximum, then with time, it slows down to zero. 

Alternating Current Generation

An alternator can be used in alternating current production. However, there are several other methods using which the alternating current can be produced. 

Applications of Alternating Current 

The following are the applications of the alternating current. Let’s have a look –

In most houses, the alternating current is commonly used in all electrical appliances. These include an audio signal, radio signal, refrigerators, dishwashers and others. It is mostly prefered as it is safer compared to other options and it can be transferred long distances without any loss of electric power. 

In alternating current, the transportation of energy can be done easily. Also, alternating current is a greater option as it can generate power for electric motors that further gives birth to mechanical energy. 

Now, when you have studied the applications of the alternating current, it’s time to understand the relationship between alternating and direct current. 

Differences Between Direct Current and Alternating Current

Given below is the list of major differences between alternating current and direct current. 

 Conclusion 

Alternating current can be defined as electric current where the direction of current electricity keeps on changing. Alternating current changes its polarity and magnitude at regular intervals. This takes place due to regular fluctuation in the voltage. Of the two, alternating current is the most preferred current electricity and is generally used in houses.