# Difference Between Ac And Dc Current Pdf

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

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The AC current changes its polarity and magnitude periodically and continuously with respect to time. The Ac current can be produced with a device named alternator that produces the alternating current. Suppose a piston is inserted inside a pipe and connected with a rotating rod as in the pin pic below. Here the piston has two strokes one towards upward and the other towards backward on the upward stroke, the water moves in a clockwise direction and the backward direction the water displaces in an anticlockwise direction so in this way water direction changes its direction periodically with oscillation of the piston. Every Ac Waveforms have a divider line or called the zero voltage line that divides the waveform two halves as the Ac current changes the magnitude and direction periodically so on every one complete cycle it reaches zero volts.

## What is the Difference Between AC and DC Currents

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.

Most of the examples dealt with so far, and particularly those utilizing batteries, have constant voltage sources. Once the current is established, it is thus also a constant. Direct current DC is the flow of electric charge in only one direction. It is the steady state of a constant-voltage circuit. Most well-known applications, however, use a time-varying voltage source. Alternating current AC is the flow of electric charge that periodically reverses direction. If the source varies periodically, particularly sinusoidally, the circuit is known as an alternating current circuit.

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​.

## 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. What is special about AC electricity is that the voltage can be readily changed, thus making it more suitable for long-distance transmission than DC electricity.

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Секундой позже произошло столкновение, и Стратмор, сбитый с ног, кубарем покатился по кафельному полу шифровалки. Это был Хейл, примчавшийся на звук пейджера. Сьюзан услышала стук беретты, выпавшей из руки Стратмора. На мгновение она словно приросла к месту, не зная, куда бежать и что делать. Интуиция подсказывала ей спасаться бегством, но у нее не было пароля от двери лифта.

АНБ покупает все, что ему требуется. Дрожа от нетерпения, Сьюзан вылетела в Вашингтон. В международном аэропорту Далласа девушку встретил шофер АНБ, доставивший ее в Форт-Мид. В тот год аналогичное приглашение получили еще сорок кандидатов.

Вы знаете, кто. - Какая разница? - огрызнулся светловолосый. - Позвольте вам сразу кое-что объяснить, - сказал директор. Секунду спустя оба, залившись краской, делали доклад директору Агентства национальной безопасности. - Д-директор, - заикаясь выдавил светловолосый.

Стратмор бесшумно спускался по ступенькам.

И развязали против Стратмора непримиримую войну. ГЛАВА 24 Дэвид Беккер стоял в телефонной будке на противоположной стороне улицы, прямо напротив городской больницы, откуда его только что выставили за причинение беспокойства пациенту под номером 104, месье Клушару. Все внезапно осложнилось, пошло совсем не так, как он рассчитывал. Мелкая любезность, которую он оказал Стратмору, забрав личные вещи Танкадо, вылилась в поиски таинственного кольца, как в известной игре, где нужно находить спрятанные предметы.

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2 Response
1. Xavierre G.

When the electricity was invented many changes have taken place over the years.

2. Vipicellli

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