0
Do all motors that use capacitors must have at least one run capacitor or a run and start capacitor true or false?
Wiki User
∙ 11y ago
true
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
How many type of coupling?
For most parts of electronics is concerned,there are two types of coupling in any alternating current source (AC) circuits: 1)capacitive coupling(Also known as the AC coupling) 2)Inductive Coupling(Also known as the Transformer coupling) Two circuits of different amplification factors and different hybrid parameter values can be merged or coupled by means of a capacitor (capacitive coupling) or an inductor or a transformer (inductive coupling).There are coupling coefficients involved with the transformer.But Capacitor blocks DC and allows AC most of the time.We use ceramic capacitors for this purpose.However never replace the ceramic capacitor with an electrolytic capacitor .Electrolytic capacitors are strictly polar while ceramic capacitors are not.Electrolytic capacitors are used as bypass capacitors.They bypass the current from the resistances that are parallel to them during high frequencies.This is so because the reactance of the capacitor is low at such high frequencies.Also current takes the least resistance path.As reactance gives the AC equivalent of the resistance,current flows into the capacitor while resistance and capacitors are connected end-end and thus the current reaches the other node(its like a diversion or a detour or a shortcut on the road for vehicles-analogously it is the simplest path a current can follow on the conductor
What does a capacitor look like?
The physical appearance varies depending on the type of capacitor in question. The main similarity between the different types is that they have two leads.Electrolytic Aluminum Capacitors come as metal cans in appearance, and can be radial (both leads at the bottom) or axial (one lead at the top, one lead at the bottom). This type of capacitor is also polarized and typically will have a symbol indicating which lead should be connected to ground (most common) or a symbol for the lead that connects to the voltage source. Typically there will be a capacitance rating in Farads on the capacitor.Ceramic Capacitors come in many different appearances, one commonly found is a disc shape. These capacitors are not polarity sensitive and thus have no markings indicating polarity. They are smaller than Electrolytic Capacitors and usually do not have enough space to display a Farad rating but will use a numeric code (similar to color bands on resistors)There are many other types of capacitors and also "homebrew" capacitors composed of soda bottles and tin foil, which makes giving an exact answer to "What does a capacitor look like?" difficult.
Name the worlds hardest-riddle ever.?
I HAVE CITIES ,BUT NO HOUSES I HAVE WATER ,BUT NO FISH I HAVE MOUNTAIN , BUT NO TREES WHAT AM I
What is the most resistance that can be in series with the capacitor if the capacitor is to charge to at least 88 percent of its final voltage in no more than 8.0 s?
Without knowing the capacitance of the capacitor, your question cannot be answered.
Is there anywhere in Edinburgh, Scotland, I can buy brushless motors?
It appears that Claremont Electric Motors and AD Auto Electrics are two places that would either carry brushless motors or at least provide you with information on where you can buy brushless motors.
True or false that hydrogen is the least common element in the universe?
It is false.
True or false the least common multiple of 6 and 8 is 48?
False; it's 24.
Did egyptions have electricity?
No at least not in the way we do to run motors lights and electronic equipment.
What is a capacitor bank?
A capacitor bank is a gathering of a few indistinguishable capacitors interconnected in parallel or in arrangement with each other. These gatherings of capacitors are regularly used to adjust or neutralize undesirable attributes, for example, force element slack or stage shifts natural in rotating current (AC) electrical force supplies. Capacitor banks might likewise be utilized as a part of direct current (DC) power supplies to increment put away vitality and enhance the swell current limit of the power supply. Single capacitors are electrical or electronic parts which store electrical energy. Capacitors comprise of two conduits that are isolated by a protecting material or dielectric. At the point when an electrical current is gone through the transmitter match, a static electric field creates in the dielectric which speaks to the put away vitality. Not at all like batteries, this put away vitality is not looked after inconclusively, as the dielectric takes into account a certain measure of current spillage which brings about the slow dispersal of the put away vitality. The vitality putting away normal for capacitors is known as capacitance and is communicated or measured by the unit farads. This is typically a known, altered quality for every individual capacitor which takes into account significant adaptability in an extensive variety of employments, for example, confining DC current while permitting AC current to pass, yield smoothing in DC power supplies, and in the development of full circuits utilized as a part of radio tuning. These qualities additionally permit capacitors to be utilized as a part of a gathering or capacitor bank to assimilate and right AC power supply blames. The utilization of a capacitor bank to revise AC power supply peculiarities is ordinarily found in substantial modern situations that component working burdens made up of electric engines and transformers. This kind of working burden is tricky from a force supply point of view as electric engines and transformers speak to inductive burdens, which cause a sensation known as stage move or force variable slack in the force supply. The vicinity of this undesirable sensation can bring about genuine misfortunes as far as general framework proficiency with a related increment in the expense of supplying the influence. The utilization of a capacitor bank in the power supply framework viably covers or balances these stage movement issues, making the force supply much more proficient and financially savvy. The establishment of a capacitor bank is additionally one of the least expensive systems for rectifying force slack issues and keeping up a force component capacitor bank is straightforward and financially savvy. One thing that ought to dependably be remembered when working with any capacitor or capacitor bank is the way that the put away vitality, if erroneously released, can bring about genuine blazes or electric stuns.
The least dangerous aspect of multiple depressant use is the additive factor True or false?
False
My AC fan don't work could this be the capacitor?
Yes. Or the motor has just burnt out! If there is no burnt smell from the motor's windings and you know the power supply to the fan is good, it is worth replacing the capacitor with an identical one. NOTE: It must not be a polarised electrolytic type, it must be non-polarised and rated at the peak mains supply voltage or higher. Such capacitors are usually sold as "AC Motor Start" or "AC Motor Run" capacitors. For a 120 Volts motor use a capacitor rated to operate at 170 Volts peak. Usually these are manufactured to handle at least 200 Volts Peak AC . For a 240 Volts motor use a capacitor rated to operate at 340 Volts peak. Usually these are manufactured to handle at least 400 Volts Peak AC. As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
What happens in a bad capacitor?
In essence, a failed (bad) capacitor appears as a "short" in the circuit, as opposed to a failed (open) resistor which appears as a "break". Unless of course the capacitor has exploded - in that case it'll probably be a "break" as well, but don't count on it.It depends on the function of the capacitor. If the capacitor is used to 'smooth out' (filter) unfiltered voltage, this function will be lost and in addition, the capacitor will "load down" the voltage rail it's supposed to smooth out. If, on the other hand, the capacitor is part of an oscillator circuit (be it a standalone oscillator, an oscillator network, or timing source for an integrated circuit), the frequency of the oscillation will be greatly offset from the ideal value, and this may appear as many different problems (instability and lack of synchronisation with signals among others) which wouldn't easily be tracked down to the bad capacitor.If, on the other hand, you were asking about what chemical and physical events take place within the capacitor as it fails, this question should be filed under "Chemistry" or "Physics" at least in additon to, if not in the stead of, "Circuits", and it would be wise to include a word or two asking about the reactions within the electrolyte itself (as most failed capacitors are electrolytic).
