0
What else can I help you with?
How many directions does alternating current flow?
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.
Will Changing the polarity of a vacuum cleaner's plug cause it to blow instead of suck?
No. you cant change it's polarity because electrical current that a house uses is not a + - type, it changes it's polarity 50 times per second.
What is power Hz?
The term Hz stands for Hertz which means cycles per second; the normal alternating current is 60 Hz, it alternates 60 times per second.
A flow of electrons in a definite direction is called?
Current. Direct Current (D.C) if it is steady. Alternating Current (A. C) changes direction at a constant rate. The frequency for North American AC current from the power grid is 60 Hz, or 60 cycles per second. This would result in the direction of current changing 120 times per second.
What is current direction?
Outside the battery, it is negative to positive and inside the battery it is positive to negative.
How many cycles per second are there in a frequency of 140 Hz?
There are 140 cycles per second in a frequency of 140 Hz. This means that the signal oscillates or completes a full cycle 140 times in one second.
Frequency of mobile computing?
Each frequency will differ with each mobile device. Frequency is known as the number of times at which an electromagnetic wave oscillates per second.
What is the difference between a low note and a high note?
high note has high frequency (cycles per second) . Low note has low frequency. The sound originated by a high frequency note oscillates more times per second, while a low frequency note oscillates less times per second.
Is electric current flows reversible?
Of course. If you take the batteries out of a flashlight and put them back in pointingthe other way, the current goes through the bulb in the opposite direction.It's so easy to reverse the flow of electric current that . . .-- the current coming out of a household electric socket reverses 120 times every second,-- the current in the antenna of your FM radio reverses roughly 200 million times every second-- the current in the antenna of your cellphone reverses almost 2 billion times every second,-- the current in the magnetron that makes the microwaves that heat your leftover meat loafreverses 4.9 billion times every second.
When current flow reverses itself several times per second that type of electric current flow is called what?
When the current in a conductor reverses direction periodically, that type of currentis categorized as "Alternating Current" (AC).Whether the reversals occur several times per second or once a month is irrelevant.
Why voltage have negative sign?
The strength of a electrical flow is measured in Voltage and Electrons are negative. Alternating current (AC) oscillates between positive and negative as the direction of flow periodically reverses direction. An alternating current of 60Hz therefore changes direction 60 times a second, and can be visualised as a sine wave that oscillates above and below the zero baseline, with a period (a complete cycle) of 1/60th of a second. Direct current (DC) infers constant polarity, meaning the direction of flow is unidirectional (one direction only). While DC can oscillate as a full-wave rectification or a half-wave rectification, it is always indicated as a positive voltage (the line or wave is always above the zero baseline). A voltage or current indicated with a negative symbol therefore implies alternating current although AC is more correctly indicated by the ± symbol. Direct current is generally indicated by a long horizontal bar above three short horizontal bars.
How many times per second does the alternating current generated at large power?
120
Can current flow both ways through a lamp?
Yes, we use AC (alternating current) in our homes, the current changes direction 120 times a second.
What is a power consumed in a resistive load if current through it is I and voltage across it is V?
Non-reactive power (watts) is current times voltage, so P = IV. Dimensionally, current is coulombs per second, voltage is joules per coulomb, so current times voltage is joules per second, which is the same as power in watts.
What is the locomotion of housefly?
A house fly moves by flying. The wings of a house fly can beat about 200 times in one second.
How many directions does alternating current flow?
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.
How do electrons flow on an ac source?
With electricity from the mains, the current chages direction 50 times each second, so it is called alternating current.
