# Why does alternating current alternate its direction?

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The generators at the power station are built to deliver voltage/current
with alternating characteristics, and this is preserved all the way from the
generating station to your house. It's completely intentional, because AC
is much easier to handle, distribute, and make the conversions between
long-distance and short-distance transmission that need to happen along
the way.
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# What is the difference between an alternating current and a direct current?

A direct current flows only in one direction. An alternating current changes its direction of flow in a regular (cyclic) way, all the time and usually several times per second. Other answers An alternating current (AC) is an electrical current whose magnitude and direction vary cyclically, as (MORE)

# How do you produce alternating current and direct current?

alternative current Alternating current is produced by a type of generator called an alternator. Direct current is produces by a generator called a dynamo, or by rectifying altenating current, or solar panels, or cells and batteries.

# What is the mathematical Formula for converting direct current to alternating current?

I guess V c= V m Sinwt; Here V m= Peak Voltage V dc =V m /(2^.5) Then We Calculate the Impedence of the Circuit.i.e. Z=(R 2 +(X L -X C ) 2 ) .5 Now I dc =V dc /Z This is the formula for obtaining Direct Current from Alternating Current.

# What can be used to change alternating current to direct current?

Youd need at least a rectifier and to flatten the ripples you need a capacitor.

# What is alternating current and direct current?

Direct current is a constant, steady state current, such as obtained from a battery. Alternating current is constantly switching polarity, usually in a sinusoidal waveform, such as obtained from an alternator, a form of generator that does not have a commutator. Direct Current and Alternating Curren (MORE)

# Why is Alternating current used instead of direct current?

There are a few reasons. 1) Easier to generate (by rotating a standard engine) 2) Stable clock rate (usable by devices to keep track of time) 3) Easy to transform (into higher or lower voltage) 4) Easy to change into direct current (e.g. diode bridge) 5) AC power can be carried long distan (MORE)

# What is a device that uses both alternating current and direct current?

Any device that has a battery and can be plugged into the wall. The power coming from the battery is DC, while the power from the wall is AC.

# How does alternating current differ from direct current?

In your home, the power outlets provide "Alternating Current", and in your car, the battery provides "Direct Current". The difference between "Alternating Current" and "Direct Current" is the changing relationship in reference to time. The battery in your car is a "Direct Current Power Source", w (MORE)

# Whether alternating current or direct current is safer?

Well, voltage and current levels being identical, alternating current would be safer. It does not spend 100 percent of its time at peak voltage, therefore the average power in case of an electric shock is lower than that of direct current, which is 100 percent.. This lesser average may allow some t (MORE)

# Why is alternating current used in home and not direct current?

Albert Einstein had an argument saying that it would be better to use Direct Current (DC) and even created an experiment making an electronic chair, but another scientist said using Alternating Current (AC) was better . This was both for the use of supplying electricity to homes through cables and t (MORE)

# Why is alternating current used in homes and not direct current?

A long story really! Albert Einstein had an argument saying that it would be better to use Direct Current (DC) and even created an experiment making an electronic chair, but another scientist said using Alternating Current (AC) was better . This was both for the use of supplying electricity to homes (MORE)

# Why direct current is more dangerous than alternate current?

Edison, the inventor of DC, tried his hardest to convince the public that Tesla's AC that was more dangerous, but DC is far more dangerous. If you are shocked wit high-current DC, you do not have a "kickback" type reaction where you will jump away from the wire. Instead, the constant signal of D (MORE)

# What do you compare with a alternating current and a direct current?

The Alernating Current can be compared to a Direct Current using the AC's Root Mean Square value. That is about .707 times the Peak value, or the sin of 45 times the peak value or, 1 over the square root of two times the peak value. All three are the same essentially. This RMS value is like the aver (MORE)

# What is the characteristics of alternating current and direct current?

AC is generated by a revolving motor which results in a sine wave which travels from positive to negative as the motor completes one revolution of 360 degrees. This development in electrical power generation by Nikola Tesla, and bought by the Westinghouse company, is what soundly beat Thomas Edison' (MORE)

# What frequency does alternating current change direction?

It changes alterations 120 times a second. It changes cycles 60 times a second in North America. In Europe alterations 100 times a second, cycles 50 times a second.

# What is Alternate current and direct current?

Alternate current (also known as AC) is a current that moves back and forth in the wire, while a direct current (also know as DC) moves in only one direction in the wire. Comment The term is alternating current, not alternate current.

# What is direct current and alternating current?

An open circuit which as you see i am not making sence but this will not be shown i will add that this question can be answered with some notes you should have and should not be asking other people it have a good day

# What is the difference between alternating current and direct current?

Direct current is constant - always in the same direction. Alternating current regularly changes direction; for example, in household current, 50 or 60 times (that is, full cycles) in every second. See the Related Link below for more information about the difference between alternating current a (MORE)

# What is different between alternating current and direct current?

Very simply, DC or Direct Current is like a flash light battery. The current flows direct in a single direction like a car around a race track. AC, or Alternating Current, does exactly what the name implies. In USA, Canada - and in other countries which use the same service frequency - the direct (MORE)

# What are the differencess between direct current and alternating current?

Direct Current :Direct current never change their position e.g if you connect a bulb using the same current then it will glow continously.. Alternating Current: Alternating current change their position (polarity) continously e.g if you connect a bulb using the alternating current then during chang (MORE)

# How do you make direct current from alternating current?

First, the alternating current is filtered through a rectifier diode, that is, a device that lets the current pass only in one direction. This will produce a current that goes only in one direction, but that pulsates. To smooth this out, i.e., to convert it into a relatively uniform current, capacit (MORE)

# Why are Alternating current and Direct current different?

Direct current flows in a single direction. Alternate current changes direction continuously - the current goes back and forth. In household current, there are either 50 or 60 cycles per second, depending on the region. In technology, other frequencies are used as well. For example, circuit for radi (MORE)

# What are alternating and direct current?

In Spanish, a direct current is called "corriente continua" - continuous current. A direct (or continuous) current flows continuously in a single direction. An alternating current changes direction all the time. In Spanish, a direct current is called "corriente continua" - continuous current. A di (MORE)

# How do you make alternating current to direct current?

You cause the current to flow through an electronic device that allows current to flow in one direction but not in the other direction. Such a device is called a "diode" or a "rectifier".

# Compare and contrast alternating and direct current?

Both alternating current (AC) and direct current (DC) describe the nature of the current in terms of its direction. DC describes when the flow of electric charge goes in a constant direction whereas AC describes when the flow of electric charge constantly reverses; in other words, the electrodes of (MORE)

# Advantages of direct current over alternating current?

DC is used in simple systems like cars which rely on a battery, andmost electronics systems like computers and radios run on DC andrequire a converter if run from the mains.

# Is the lightning is alternating or direct current?

i think it is ac. bcs the direction is changed with time. so it is ac

# Compare alternating current with direct current?

Alternating current changes direction on a set frequency such as 50 Hz, 60 Hz or 400 Hz. Direct current always flows in one direction.

# Frequency of direct current and alternating current?

The frequency of direct current (DC) is 0 Hz. The current only flows in one direction, like the electrical system in your car. On the other hand alternating current (AC) as it suggests alternates back and forth from source to load and when graphed it looks like a sine wave. The frequency of this cur (MORE)

# Can alternating current be changed to direct current?

Yes an AC can be converted into DC by rectification. Most appliances today have built in rectifiers to be able to receive incoming AC and change it back to DC when received.

# Why is alternating current used more than direct current?

Because A.C. can go farther without dissipating as heat. Mucheasier to change from low to high voltage and back down. Answer Alternating current is widely used because its voltage can beeasily and efficiently increased or decreased using transformers.Transformers are a.c. machines, and will n (MORE)

# How alternating current converted into direct current?

AC can be converted into DC by using diodes to block half of the current sine wave (half-wave rectifier) or divert half of the current sine wave (full-wave rectifier) so that it travels in the same direction as the other half of the sine wave, you can also use an AC motor to drive a DC generator.

# Example of direct current and alternating current?

Direct current: the current in a battery or dry cell. Alternating current: the current from the outlet in your home.

# What changes alternating current into direct current?

A device that converts alternating current (AC) to direct current (DC) is known as a rectifier.

# What are Sources of direct current and alternating current?

One source of DC would be a battery and one source of AC would be a generator.

# Why is alternating current better than direct current?

It's not "better". It's different, which is better in some ways and worse in others. The substantial advantage it has over DC for power transmission is that it's relatively easy to step up or down the voltage as needed using transformers. This allows the use of very high voltages for long distanc (MORE)

# What device converts direct current to alternate current?

To convert direct current to alternating current you need either an inverter or a motor-generator set.

# How do direct current differ from an alternating current?

The difference between direct current and alternating current is that DC current does not reverse polarity but alternating current changes polarity back and forth so many times per second. That is called its frequency.

# Can alternative current be turned into direct current?

By "alternative" I presume you mean "alternating". Yes it can by using a device called a rectifier then some sort of bypass circuit to conduct the alternating current to ground, usually just a capacitor.

# Does a battery deliver a direct current or an alternating current?

Yes battery deliver a direct current not a alternating current because battery has limited amount of energy and to create a electric pressure acrross the circuit it gives out a direct current. Therefore alternating current varie from 0v - 240v and it keeps on varying.

# Why an alternating current is dangerous than direct current?

It's not. Direct current is more dangerous because it stresses the body more, the body can easier withstand an alternating current. Direct current may fx cause the heart to cook or even explode while alternating current typically won't change it's temperature or size much.

# Does a battery give direct current or alternating current and why?

Because of the chemicals and metals which are used to make it, a battery can only produce dc (direct current). For the same reason a battery cannot produce ac (alternating current) on its own, but it can be connected to another device, which is called an invertor, to produce ac for use by devices (MORE)

# Is it true a transistor changes alternating current into direct current?

Not usually. A transistor is an amplifier, that can be used as a switch. If set up correctly it can be used to rectify AC current (i.e. convert it into DC), however it will need a capacitor to smooth the DC current (i.e. keep the voltage constant or nearly the same). What is typically used is a r (MORE)

# What do alternating current and direct current have in common?

Alternating Current (AC) refers to electricity where the Voltage on the "Hot" wire fluctuatesaround a particular level. Those levels common in the USA are 120 volts, 240 volts or 480 volts but can be other higher values for commercial power transmission i.e. 5,000 volts, 12,500 volts ect. These volt (MORE)

# How is a diode used to change alternating current into direct current?

Direct current is one way traffic where as ac is two way. Diode isonly for one way So diode restricts two way Hence rectification

# Why capacitor does not store alternate current but store direct current?

Because Alternet current has both positive as well as negative cycle capacitor does not conduct for negative cycle of the Alternet current and DC all are positive cycle thats why it capacitor conduct for DC not for AC

# Can alternating current be turned into direct current?

Yes but is somewhat complicated to get good level DC from an AC source. ==== Answer #1.5 : All electronic devices operate on DC ... radios, TVs, computers,stereos, etc. If the device plugs into the wall outlet for power to operate, thenthe AC from the wall outlet is used to produce DC inte (MORE)

# What is the difference between the alternating current and direct current?

A direct current flows in one direction only. An alternating current changes direction all the time; for commercially available current, a full cycle typically takes 1/50 or 1/60 of a second.

# Why can direct current not be changed to alternating current?

It sure can. It is just a bit more complicated than the other way round.

# Does the light switch use direct current or alternating current?

The light switch uses whatever type of current the circuit givesit. In a flashlight it is DC, in most home lighting it is AC, inLVDC outdoor home lighting it is DC, etc.