0
What else can I help you with?
What is meant by DC motor?
Only a DC motor uses direct current, and the reason is that it is the only supply available. There are also plenty of AC motors used when there is an AC supply. DC tends to be used for low-power devices like fans in electronic equipment.
Dc and ac analysis of Differential amplifier?
DC Analysis: For this analysis, frequency is made zero and the voltage of the source is increased in small steps from 0V.And the output voltage is plotted. So, finally we get a Vout vs Vin curve. AC Analysis: In this analysis, we choose an AC source. We keep the Offset voltage = 0V, AC voltage or small signal voltage = 2V (You can take any voltage you wish and it doesnt matter). So, to plot the ac response or frequency response of the circuit, increase the frequency in steps and note the output voltage. from this analysis , we can find the gain of the circuit over frequency.
Advantages n disadvantages of ac over dc?
AC electrical distribution systems can easily allow changes in voltage using transformers. This gives AC electrical distribution systems a great advantage compared to DC.By using transformers, AC power can be changed up to very high voltages for transmission and then changed down again to safer voltages for consumers to use, with comparatively very much less loss of power than DC.AC has less copper loss (more heating effect) than DC and it's easier and cheaper to produce too.The voltage of AC can be easily changed while it's difficult to do so in DC.Other FactletsAC is usually used for transmission because DC cannot be run through a transformer.Edison's original system was DC. It required many power generating stations because the voltage couldn't be stepped up/down like AC. This is why Westinghouse's (Well, Tesla's IIRC. Westinghouse bought it.) AC system lasted in the long run.Sometimes high voltage DC is used for transmission, but it requires special equipment at both ends.Semiconductor electronics require low voltage DC so your electronic devices have power supplies that change the high voltage AC to low voltage DC.A battery used to store electricity can only store and deliver DC. This is why the basic electrical system used in vehicles is DC.
DifferEnces of long vs short shunt DC COMPOUND MOTORS?
the basic difference is ,in short shunt motor the series field winding wont carry any current under no load condition whereas in long shunt motors series winding will carry no load current.....
What is the difference between synchronous motor vs induction motor and which one is better?
The big difference is that the synchronous motor's rotor can have a variable current applied to it through its field slip rings. Both types of motors have their own advantages. With a synchronous motor in the system, the systems power factor can be regulated.
Who is a rival of Edison?
Nikola Tesla Also George Westinghouse (famous for invention and commercialization of ac current as electrical system vs. Edison's dc current - Westinghouse won that one!)
Main difference between ac and dc motor?
Dc is an electrical term for direct current. Ac stands for alternating current. As you probably guessed a dc moter uses dc current and an ac moter uses ac current. P.S. Most home outlets use ac current.
What is meant by DC motor?
Only a DC motor uses direct current, and the reason is that it is the only supply available. There are also plenty of AC motors used when there is an AC supply. DC tends to be used for low-power devices like fans in electronic equipment.
DC VS AC?
DC is constant in directionAC is reversing in direction
Differentiate between alternating and direct voltage systems?
AC = Alternating Current and is what you find in your house to power lights, TV, etc. It is characterized by a sine wave that alternates between positive and negative 60 times a second. DC = Direct Current and is what a battery supplies. Read about Nicholas Tesla to learn about the choice of AC vs. DC in our power grid system.
Will there be a mavel VS DC movie?
There are no current plans for a Marvel vs DC movie. Both Marvel and DC are separate entities with their own cinematic universes and characters, making a crossover difficult to coordinate.
Why didn't Thomas Edison and Nikola Tesla get along?
Tesla vs Edison is a traditional science battle but long since past. Edison had a primitive DC current as opposed to Tesla AC, which is the usual current now a days. both sides had different designs for light bulbs, Tesla being better. Tesla got his 15 minutes of fame at the world fair. they used AC & Tesla's light bulbs. Edison was rich but Tesla died in the red. also tesla was a inventor more of the thinking type but edison was a tinkering man.
Which is more denger ac or DC?
Well, asking this is like how you prefer to die by jumping into a well or by cutting your wrist. The answer lies in the wave patterns of AC and DC In AC the waveform reaches to zero in every cycle, so there is a chance that you can survive AC On the other hand, in DC there is no such thing as frequency so there is no zero in the waveforms. So, if you get in direct contact with DC, be prepared to meet GOD ponypomp-- In the real world,say your talking landscape lighting, 120v landscape lights could fail due to degradation to the wires and kill you, if you used 12v-22v DC lighting and it fails, nothing will happen and is safer then AC. You would die faster from your house electric then you would from a car battery. So in the real world, DC products are safer then AC. ...assuming voltage is less. If AC voltage is less than or equal to DC, it could be a toss up. The real killer is the voltage level, and how much current backs that voltage up (ie the power that can be delivered). A taser is very high voltage, but it will not kill (or isn't supposed to) because of the very low current. There are such things as Very high voltage DC lines used to transfer power, and DC tie stations connecting the three US grids (Eastern, Western, and Texas). DC here is extremely dangerous because of the voltage level, and the massive amount of power available. ponypomp- Sorry,sounded kind of sarcastic. It has to do with amperage, for the most part amps kill and not voltage. lightning, is DC,and a lot of people have lived being hit by thousands of DC volts, people have died from 120v house current, there are so many factors with resistance and amps the explanation would fill several pages.. I added to your comment,because of the fact that for the home there are a lot of DC products VS AC products,and the dc products are a lot safer then the AC products. I did not want people thinking they should go with AC when DC is safer, speaking directly about home products.
Which type of electric current is used to start your car in the morning?
How many types of electric current are there ? Are you talking about AC vs. DC ? The car's battery supplies DC, just as all batteries do. The DC from the battery is used to turn a small but powerful DC motor, and to energize a solenoid that pulls the powerful motor into contact with a mating gear on the engine, enabling it to crank the engine in hopes that the engine may kick in and begin to run on its own. The DC current that the battery supplies while the little "starter" motor is cranking the engine is quite considerable, and may range upwards of 100 amperes!
What is the difference between electricity in a battery vs the electricity in an electrical outlet?
One is AC and the other is DC. AC- alternating current is used in electrical outlets DC- direct current is used in batteries. An electrical outlet in your house would have 120 volts (the ones you use most, your tv, lights, radio are plugged into) or 240 volts (the ones your stove and dryer plug into). A battery voltage varies widely: AA & AAA batteries have 1.5 volts, a 9 volt battery has 9 volts, your car battery has 12 volts.
What is the ISBN of DC vs. Marvel?
The ISBN of DC vs. Marvel is 1-5638-9294-4.
Why we Indians use only ac current?
Don't worry, anywhere in the world, house power is AC current. typically, the voltage ranges from 110V to 240V singlephased, and a frequency of 50 to 60HzThe reason of AC (alternating current, swinging from a positive to a negative and back positive for 50 to 60 times per second) is that electricity has always been generated this way, it's easier to transform to lower or higher voltages, and is less dangerous than DC current.generation: in generators, a rotary unit will generate current by moving a magnetic field over a conductor. This will generate electricity.Transformation: a transformer can concert changing electromagnetic fields to another voltage-current with minimum losses.transportation and safety: AC currents will cause vibrations in wires, but since 100 to 120 times per second, the voltage and current are zero, any electrical short or malfunctioning will stop for a short period of time.DC will make your muscles cramp, eg. around an unprotected wire, and there is no way to let go. AC will shock you (100 times per second) but has a less 'sticky' effect.Note a smaller amount of low frequency AC current will kill vs. AC. A study was done showing that 90mA of DC will cause "painful and severe shock, difficulty breathing, and loss of muscular control" by most male individuals. 60mA DC will do the same to most women. 23mA of 60Hz AC for men and 15mA of AC for women is roughly equivalent.
