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What farad capacitor would you put on a 3 volt DC motor for fastest rpm?
Wiki User
∙ 15y ago
if u want it to go faster u want more current. a capacitor is not going to do anything for u unless your haveing problems getting it to turn
Wiki User
∙ 15y ago
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What would be the physical size of a 1 farad capacitor?
When used in car audio applications, a 1 farad capacitor is usually about 6" long and about 2.5-3" in diameter.
What does the farad rating mean in capacitors?
The rating or 'size' of a capacitor, called its "capacitance", is related the amount of charge the capacitor can store, to the amount of energy it holds when it stores some charge, and to the opposition of the capacitor to the apparent flow of alternating current through it. If a capacitor has a capacitance of 1 farad, then -- One coulomb of charge stripped off of one plate and added to the other plate produces 1 volt of potential difference between the plates. -- The energy stored in the capacitor is 1/2 the square of the voltage across it. -- Its impedance is (0.159 divided by the frequency) ohms. The farad is an enormous capacitance. A typical capacitor used in a 'lumped' circuit ... the kind of construction where you would buy a capacitor and solder it in ... has a capacitance in the range of maybe 10 picofarads (trillionths of a farad) to maybe 100 microfarads (millionths of a farad).
Why 1 farad capacitor generally is not available in the market?
I'm not sure where you are getting your information. Capacitors come in a large range - nano farad to several farad. The higher the farads, the bigger (in general) the capacitor will be. For example, amazon has a 1 F, 20 volt cap for ~76.00. I would consider this to be "generally available in the market". If you want a 1 farad cap for 120 volts, it's going to be substantially bigger than this one (20 volt is ~5 lbs.).
Can you change 50 v micro farad capacitor with a 63 v 100 microfarad capacitor?
Generally, yes - a 35 uF capacitor is close in value to a 30 uF capacitor - but it depends on the circuit requirements. If you are talking about a tuned filter, I would say no. If you are talking about a power supply filter, I would say yes. Just keep in mind that it takes more current to charge a larger capacitor, so you need to consider the current rating on the diode(s). Of course, if this mattered in a power supply, then I would also say that the design margins are too tight. Again, 35 versus 30 is not a big difference - again, sometimes. Also, you need to ensure that the voltage rating of the new capacitor is equal to or greater than the voltage rating of the old capacitor.I've received a message that this capacitor is a motor starting capacitor in an air conditioner. My answer is this...Then I would consider it a tuned circuit, because phase angle of the power in the start windings would matter to the proper starting of the motor. However, my root analysis holds - you need to consider the system's design requirements.If any motor engineers out there are willing to take a stab at this, please do. I have flagged the question to attempt to get a better answer.
How do you discharge a 1 farad capacitor?
You could try licking the electrodes but that might hurt. I would just connect the electrodes with a screw driver that has a thick plastic handle, but if u mean discharge it in a circut just use a transistor
What would be the physical size of a 1 farad capacitor?
When used in car audio applications, a 1 farad capacitor is usually about 6" long and about 2.5-3" in diameter.
Which capacitor is best for a 1400Watts amp?
It you mean a cap then it's 1 farad for every 1000 watts. So you would want a 1.5 farad cap. Or a 2 farad would work as well.
Can i use capacitors to run a motor instead of a battery and how do i control the voltage to the motor?
You COULD use a huge capacitor, like a bank of 1-farad car stereo caps, to run a motor, because a cap is basically a battery that doesn't hold very much electricity. And if you did it, you'd control the voltage to the motor the same way you would with a battery--resistors, potentiometers, voltage regulators, whatever you like.I wouldn't do it, though, because a capacitor doesn't hold enough electricity to let the motor run for very long.Quick note: single phase AC motors all have "run capacitors" and "start capacitors" but those are something else entirely.CommentI don't think that you will ever find a 1-F (one farad) capacitor! A farad is a HUGE amount of capacitance! Practical capacitors are expressed in picofarads (10-12 farad) or microfarads (10-6 farad), never in farads! Bear in mind that capacitance is directly proportional to the area of its plates -so imagine how huge a 1-F capacitor would have to be!Running a motor from a capacitor is completely impractical. A capacitor will completely discharge in 5 CR, where Cis the capacitance of the capacitor and R is the resistance connected across its plates.So, let's pretend from one moment that you can find a 1-F capacitor and let's say the motor has a armature resistance of, say, 50 ohms (quite high!), then the capacitor would completely discharge in 5 x 1 x 50 = 250 s, or a little over 4 minutes!!!! However, if we used a capacitor with a realistic value of capacitance (in microfarads), then the discharge time would be measured in milliseconds! So, not much use for driving a motor!!!
What if 10 micro farad capacitor is connected to 5 micro farad capacitor in parallel what would be the result?
Since the total capacitance for capacitors in parallel is the sum of the individual capacitances. I'm sure that you can work it out for yourself!
What does the farad rating mean in capacitors?
The rating or 'size' of a capacitor, called its "capacitance", is related the amount of charge the capacitor can store, to the amount of energy it holds when it stores some charge, and to the opposition of the capacitor to the apparent flow of alternating current through it. If a capacitor has a capacitance of 1 farad, then -- One coulomb of charge stripped off of one plate and added to the other plate produces 1 volt of potential difference between the plates. -- The energy stored in the capacitor is 1/2 the square of the voltage across it. -- Its impedance is (0.159 divided by the frequency) ohms. The farad is an enormous capacitance. A typical capacitor used in a 'lumped' circuit ... the kind of construction where you would buy a capacitor and solder it in ... has a capacitance in the range of maybe 10 picofarads (trillionths of a farad) to maybe 100 microfarads (millionths of a farad).
What is the capacitance of a capacitor?
Capacitors are built to different specifications depending on application. The higher the capacitance the more charge the capacitor can store.The capacity to store electric charge, when a voltage is applied. Measured in Farad = Coulomb/Volt. In other words, if for every volt applied the capacitor stores 1 coulomb of charge, it would have a capacitance of 1 farad. In practice this is a huge unit, and the capacitance is usually expressed in micro-, nano-, or even pico-Farad.
Why 1 farad capacitor generally is not available in the market?
I'm not sure where you are getting your information. Capacitors come in a large range - nano farad to several farad. The higher the farads, the bigger (in general) the capacitor will be. For example, amazon has a 1 F, 20 volt cap for ~76.00. I would consider this to be "generally available in the market". If you want a 1 farad cap for 120 volts, it's going to be substantially bigger than this one (20 volt is ~5 lbs.).
Would an electric motor start if its capacitor broke down?
No.
Would stored power in a 1 farad capacitor cause the power lights on my two amplifires to stay on even after car is shut off?
no check your remote wires
What happens if you put a inductor instead of the capacitor at the capacitor start motor?
An inductor can be used, in principle, but it has to be the right inductance, it will waste more power than a capacitor, and the motor would rotate the opposite way.
What would be the resonant frequency for a series RLC circuit with the following components a 1 k ohms resistor a 900 micro Henri inductor and a 0.014 micro farad capacitor?
44836.82577 Hz
How big of a cap do you need have 2 12 kicker cvr powered by a 1600watt power acoustik 2 channel amp310rms at 4ohm how big of a capacitor do i needwould 1.2 farad be good?
the rule of thumb to remember is that for every 1000 watts u run u want 1 farad, so a 1.6 farad would be ideal but u can use a 1.2 if that's all u have
