Difference Between Ac And Dc Current Pdf

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Most of the examples dealt with so far, and particularly those utilizing batteries, have constant voltage sources.

Alternating Current (AC) Electricity

The conducting materials have free electrons which move from one atom to another when the potential difference is applied across them. This flow of electrons in a closed circuit is called current.

On the basis of the direction of movement of electrons in a closed circuit, the electric current is mainly classified into two types, i.

One of the major differences between the alternating and direct current is that in alternating current the polarity and the magnitude of the current changes at the regular interval of time whereas in direct current it remains constants. Some of the differences are explained below in the form of the comparison chart by considering the various factors;.

Basis Alternating current Direct current Definition The direction of the current reverse periodically. The direction of the current remain same. Causes of flow of electrons Rotating a coil in a uniform magnetic field or rotating a uniform magnetic field within a stationary coil Constant magnetic field across the wire Frequency 50 or 60 Hertz Zero Direction of flow of electrons.

Type of load Their load is resistive, inductive or capacitive. Their load is usually resistive in nature. Graphical Representation It is represented by irregular waves like triangular wave, square wave, square tooth wave, sine wave.

It is represented by the straight line. Transmission Can be transmitted over long distance with some losses. It can be transmitted over very long distance with negligible losses.

Convertible Easily convert into direct current Easily convert into alternating current Substation Few substation is required for generation and transmission More substations are required for generation and transmission Passive Parameter Impedance Resistance Harazdous Dangerous Very dangerous Application Factories, Industries and for the domestic purposes.

Electroplating, Electrolysis, Electronic Equipment etc. The current which changes its directions periodically, such type of current is called alternating current. Their magnitude and polarity also change along with the time. In such types of current, the free electrons electric charge moved in the forward as well as in the backwards direction.

The frequency number of cycles completed in one second of the alternating current is 50 to 60 Hz depends on the country. The alternating current is easily converted from the high value to low value and vice versa with the help of the transformer. Thus, it is mainly used for transmission and distribution.

When the electric charge inside the conductor flows in one direction, then such type of current is called direct current. The magnitude of the direct current always remains constant and the frequency of the current is zero. It is used in cell phones, electric vehicles, welding, electronic equipment, etc. The direct current is more dangerous than the alternating current. In alternating current, the magnitude of the current becomes high and low at regular interval of time and in direct current, the magnitude remains the same.

When the human body is getting shocked, the alternating current enter and exit from the body at regular time interval whereas the direct current, afflict the body continuously. This is a great format to tell the difference between AC and DC current. I enjoyed reading this one and really liked the images you have shown here.

Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Skip to content The conducting materials have free electrons which move from one atom to another when the potential difference is applied across them. Leave a Comment Cancel Reply Your email address will not be published.

Rotating a coil in a uniform magnetic field or rotating a uniform magnetic field within a stationary coil. It is represented by irregular waves like triangular wave, square wave, square tooth wave, sine wave.

Alternating current

The conducting materials have free electrons which move from one atom to another when the potential difference is applied across them. This flow of electrons in a closed circuit is called current. On the basis of the direction of movement of electrons in a closed circuit, the electric current is mainly classified into two types, i. One of the major differences between the alternating and direct current is that in alternating current the polarity and the magnitude of the current changes at the regular interval of time whereas in direct current it remains constants. Some of the differences are explained below in the form of the comparison chart by considering the various factors;.


Most students of electricity begin their study with what is known as direct current (​DC), which is electricity flowing in a constant direction, and/or possessing a.


AC vs. DC (Alternating Current vs. Direct Current)

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Alternating Current (AC) vs. Direct Current (DC)

Alternating current AC electricity is the type of electricity commonly used in homes and businesses throughout the world. While direct current DC electricity flows in one direction through a wire, AC electricity alternates its direction in a back-and-forth motion. The direction alternates between 50 and 60 times per second, depending on the electric system of the country.

However, the two appear to be more recently coming together to exist in harmony. Alternating and reversing direction 60 times per second 50 in Europe , AC current could be converted to different voltages more easily using a transformer. However, in recent years, DC has seen a bit of a renaissance. While both AC and DC current deliver electricity, the way in which that electricity arrives at its end destination differs.


PDF | Capacitance nonlinearities were studied in atomic layer deposited HfO2 films using two types of signals: a pure ac voltage of large.


5 Response
  1. Leroy B.

    in a DC circuit the current always flows in the same direction In an AC circuit the current reverses direction fact that the current reverses makes no difference​.

  2. Babette A.

    What Is Alternating Current (AC)?. The difference between DC and AC is fundamental knowledge concerning power electronics. AC. There Is N.

  3. Crotmentisa1986

    Electricity flows in two ways: either in an alternating current AC or in a direct current DC.

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