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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 current can vary depending on the source and it's application. Take your house hold electrical system for example, it is AC current with a frequency of 60 Hz (in North America), which means that you will have 60 current cycles a second. There is a lot more to both AC and DC systems and their applications but that's the basic difference between the two.
What else can I help you with?
What are the 2 basic types of currents?
The main division is between alternating current (AC) and direct current (DC). AC is universal now for domestic and industrial supply, but DC used to be used in some places in the early part of last century. Automobiles use DC at 12V which is I think universal now. AC in domestic use can be at 50Hz (Europe and many other places) or 60Hz (North America), and can be at either 240V or 120V.
What does 115 vac mean?
115 VAC stands for 115 volts alternating current. This indicates the voltage and type of electricity supplied to a device or appliance for operation. In the case of 115 VAC, it means that the electricity flows in both directions periodically, typically used in household electrical systems in many countries.
What is one way that alternating current is more useful than dirrect current?
One way that alternating current is more useful than direct current is that it can be easily transformed into different voltage levels using transformers, enabling efficient long-distance power transmission. Additionally, alternating current is capable of powering electric motors, which are essential in many industrial applications and household appliances.
What is the difference between electron flow and conventional current?
We all know that, in metal conductors (but not in other conducting media), free electrons slowly drift from the negative end of the conductor to the positive (or 'less negative') end of the conductor. But before anyone knew about atoms, an electric current was thought to be the flow of some sort of 'fluid' from a higher pressure (i.e. positive pressure) to a lower pressure (i.e. a negative pressure) -as suggested by Benjamin Franklin. This error was reinforced by Michael Faraday as a result from his experiments in electrolysis.So 'electron flow' (- to +) describes what is actuallyhappening in a metal conductor, whereas 'conventional flow' (+ to -) is, to put it simply, an error!Unfortunately, because so many 'rules' that relate current direction to the direction of magnetic fields and electric fields were based on conventional flow, many textbooks have found it convenient to stick with conventional flow.
How many amps is 60 hz?
Well, friend, hertz (Hz) measures frequency, while amps measure electrical current. They are two different things, like happy little trees and fluffy clouds in the sky. So, 60 Hz refers to the frequency of alternating current, while amps measure the flow of that current. Just remember, there are no mistakes, only happy accidents in the world of electricity!
How many times per second does the alternating current generated at large power generator reverse directions?
120
How many megohms need to run a motor?
A megohm is a unit of resistance to the flow of electricity. The requirements of motors are given in terms of voltage, current, whether they are direct or alternating current and, if alternating current, the number of phases.
What is an electric current that periodically changes direction?
An electric current that periodically changes direction is called an alternating current (AC). In AC circuits, the flow of electric charge reverses direction many times per second, typically at a frequency of either 50 or 60 Hz. This is in contrast to a direct current (DC) in which the flow of electric charge remains constant in one direction.
What Current is one that reverses direction at regular intervals?
An alternating current (AC) is a type of current that regularly changes direction, typically many times per second. This alternating flow of electric charge is commonly used in households and businesses to power electrical devices.
What direction does wind always flow?
Direct Current, sometimes abbreviated DC. When the current periodically changes direction, that's Alternating Current (AC)
Why is there only one circuit in the series connection?
Current flow direction is not dependent on whether or not it's in a series or parallel circuit. Current directional flow is solely determined by the power source. For businesses and residential power, utilities use various forms of alternating current. For example, the United States utilizes alternating current that changes directional flow 60 times per second. Some parts of Europe use alternating current that changes direction 50 times per second. Many electronic devices use a direct current source in which the current flow is only in one direction, from negative to positive or a converter that changes the alternating current source power to direct current.
What is a electric that rapidly changes directions?
An electric current that rapidly changes directions is known as an alternating current (AC). This type of current flows back and forth in a circuit, changing direction at a specific frequency, such as 60 Hz in many parts of the world. This is in contrast to direct current (DC), which flows in only one direction.
How many directions does current flow through a diode?
A diode allows only current flow in one direction under normal operation. Exceed the operating voltage and it can break down allowing bi-directional flow.
What are the 2 basic types of currents?
The main division is between alternating current (AC) and direct current (DC). AC is universal now for domestic and industrial supply, but DC used to be used in some places in the early part of last century. Automobiles use DC at 12V which is I think universal now. AC in domestic use can be at 50Hz (Europe and many other places) or 60Hz (North America), and can be at either 240V or 120V.
What current does a capacitor pass?
ac power (alternating current) it blocks dc power Many people will say a capacitor can't pass current because they consider Electric current to be the flow of electrons but that's not necessarily the case. In a capacitor current is passed by the building up and dropping of an electric field. DC does not flow for long of course.
Is there a polarity in an alternating current circuits?
Yes, there is a polarity in an alternating current (AC) circuit, but it constantly changes direction. In an AC circuit, the current flow reverses direction periodically, typically 50 or 60 times per second depending on the frequency of the power source. This changing polarity allows the current to flow back and forth, enabling the transmission of electrical energy over long distances efficiently.
What does 115 vac mean?
115 VAC stands for 115 volts alternating current. This indicates the voltage and type of electricity supplied to a device or appliance for operation. In the case of 115 VAC, it means that the electricity flows in both directions periodically, typically used in household electrical systems in many countries.
