A DC generator is similar to an AC generator except that in a what?
117405
Generators (AC or DC) can be manufactured to produce output from either the rotor or the stator.  If from the stator, the output is AC and one or more diodes are needed if DC is wanted.  If from the rotor, the current within the rotor is AC and can be (1) picked off with slip rings, providing AC, and converted to DC with diodes if needed, or (2) picked off with commutator and brushes if DC is needed.\nSo one answer to the question would be, ...except that any DC generator must use commutator/brushes or diodes.\nI guess you have listed multiple-choice options.  If so the only correct answer is #2.
855117
It appears you are speaking of apparent power. \nTransformers are rated in VA (volt X amps) called apparent power. \nIn a DC circuit power is determined by multiplying voltage X current (E X I = P). In an AC circuit power is determined the same way only when voltage and current are in phase with each other which means they are rising and falling falling at the same time. \nWhen they rise and fall at slightlly different times the time difference is known as a phase angle and the cosine of this angle is also applied to the E X I =P formula making it E X I X the cosine of the angle. This formula is used to determines the TRUE POWER of the AC circuit or any transformer circuit. \nTo sum it up, the APPAREMT POWER is always volts X amps. The TRUE POWER is always VOLTS X AMPS X the cosine of the angle. \nThe angle becomes larger when inductors, motors and capacitance are part of the load circuit.
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1. Motor driven Van de Graaff Generator.\n\n2. High voltage multiplier - Jacob's Ladder.\n\n3. High voltage induction coil - Tesla Coil.\n\n4. Flyback Transformer.
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dc is direct current. ac is alternating current.\nac current's voltage varies constantly in a sinusoidal manner, while DC has a constant, flat-line voltage
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you shouldn't have to rewire anything.  a(n AC) motor is a generator and a generator is a motor.  physically they are the same thing!  attach the motor contacts to a multimeter or oscilloscope, crank on that bad boy and watch what happens!
820704
Good Idea..but probably expensive to hook up the equipment to some sort of generator....gotta keep the place looking clean.\n\ninresponse to answerman....(below)\nIt could be possible to keep a battery bank charged and use an inverter to run a small a/c.\nSort of like a solar setup or windmill.
643695
From electricity...the term alternating current/direct current.
193357
The generator consists mainly of a coil of wire wound over an iron core.This wire is connected to an external circuit where the current produced is either stored in capacitors or used to run a particular device. When the axle of the wire is rotated, magnetic flux linked with the wire changes and hence, according to Faraday's law, an electomotive force(emf) is induced in the wire as it is placed in between magnets having different polarities. Slip rings are present to allow the flow of the alternating current produced into an external circuit.
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UPS=uninterruptible power supply =battery backup\n\ninverter=what the other guy said = convert dc to ac = part of a UPS\n\nThe battery of a UPS is direct current (as are all batteries), and the inverter is used to convert that to alternating current for use of devices hooked into the UPS when regular power is lost.\n\nThe inverter also converts AC from the regular power source to dc to recharge the battery.
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Read this article and the other links inside.\n\nhttp://en.wikipedia.org/wiki/Dc_motor
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First of all generator generates electricity. Electricity is tapped from armature of the generator. While in electrical motor , supply is given to the armature. As far as your question is concerned since the armature is rotating while magnetic field is stationary only way to tap the supply is through brushes. Continuous wire will break .
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I am not sure if there are safer or just more reliable.  They have no brushes compared to a DC generator.  They use diodes instead.
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Large commercial generators do not have permanent magnets. The rotating field is magnetized via slip rings that feed current into it's windings. The current is generated by the exciter which is either a small generator attached to the end of the shaft or, in modern applications, an electronic SCR converter.
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AC or Alternate Current refers to the form in which electricity is delivered to businesses and residences.  This is the opposite of DC or direct current which is what batteries provide.
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My God, I've never seen so much misinformation and confusion in my life.\n\nThe word "generator" is a generic name for a rotating machine which converts mechanical energy into electrical energy.\n\nThere are two types.\n\nOne type of generator is a dynamo, which produces d.c.\n\nThe other type of generator is an alternator, which produces a.c.
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I assume you are talking about Alternating Current which runs at a specific frequency.\n\nAt the generating plant the electricity from all generators run at the same frequency (60 Hz in the US)\n\nWhen a generator is brought on line and connected to the power grid there is a device that measures the frequency of the generator and compares it to the frequency of the grid.\n\nThe electricity from the generator is brought to slightly higher or lower than the frequency of the grid...and this device will then show when the two are in "synch"....at that point you close the breaker that connects the generator to the grid.
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Batteries produce electricity, too. Probably what you mean is whether direct current (from batteries) or alternating current (from electric companies) is better...\n\nDirect current electricity is better than alternating current electricity...\n\nDirect current electricity produce more work with less energy than when using alternating current electricity...Although, availability of a.c. electrictiy is better than d.c. electricity.