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If you take out the battery in a capacitor before inserting a dielectric will there still be charge on the dielectric?
Wiki User
∙ 14y ago
The charge in a capacitor is between the plates. The dielectric is only an insulator that allows the plates to be very close without touching and discharging the charge. There is no battery in a capacitor.
Wiki User
∙ 14y ago
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What is a feed through capacitor?
A feed through capacitor is a type of capacitor (if you don't know how a capacitor works, look this up before going on) for bypassing RF voltage frequencies to ground of a transmitters chassis. It is built by putting a dielectric around a conductor and encasing it in a metallic tube.. so that the conductor is one plate and the outer tube is the second plate. They are shown in a schematic diagram by a straight line and a half moon to the side much like standard capacitor with the exceptions there are three connections. Two for the conductor plate and usually one for the outer shield. The higher frequencies that travel down the conductor plate 'pass through' (no current flows through the dielectric of a capacitor, unless it is leakage current or breakdown current) the dielectric to the outer case (typically grounded), while the lower frequencies (and DC) continue on through the conductor. So, in effect, what a bypass capacitor does is pass the DC current through it while bypassing the AC to ground of the chassis. The value of the capacitor will determine the capacitive reactance and what frequencies will pass more freely to ground.
Does current actually flow through a capacitor?
No. Current (or more specifically, charge) flows into one plate, and an opposing current (charge) flows out of the other plate, but the current (except for leakage current) does not flow across the dielectric. The result is that there is a charge differential between the plates.
What is dielectric stress?
The dielectric stress is the stress placed upon a material when a voltage is placed across it.
Where is the knowledge of dielectric strength helpful?
One field in which this is helpful is in the manufacture of insulating materials. Dielectric strength determines the strongest electric field an insulator can withstand before it fails. For example, if the insulation around a wire melts or breaks, the insulator's dielectric strength is compromised.
How does a 1 farad capacitor work?
Answer The easiest way is to connect it directly to the battery. Make sure the polarity matches up. (-ve to -ve, and +ve to +ve). Because it is 1F, it will take some time to charge. (probably a minute or two.) In that way, the capacitor will charge to whatever the voltage of the battery. But won't be fully charged,
What is a feed through capacitor?
A feed through capacitor is a type of capacitor (if you don't know how a capacitor works, look this up before going on) for bypassing RF voltage frequencies to ground of a transmitters chassis. It is built by putting a dielectric around a conductor and encasing it in a metallic tube.. so that the conductor is one plate and the outer tube is the second plate. They are shown in a schematic diagram by a straight line and a half moon to the side much like standard capacitor with the exceptions there are three connections. Two for the conductor plate and usually one for the outer shield. The higher frequencies that travel down the conductor plate 'pass through' (no current flows through the dielectric of a capacitor, unless it is leakage current or breakdown current) the dielectric to the outer case (typically grounded), while the lower frequencies (and DC) continue on through the conductor. So, in effect, what a bypass capacitor does is pass the DC current through it while bypassing the AC to ground of the chassis. The value of the capacitor will determine the capacitive reactance and what frequencies will pass more freely to ground.
A parallel plate capacitor has a plate separation of 1.0 mm How much potential difference can be placed across the capacitor before dielectric breakdown of air occurs?
You need more information than this to find your solution. There will be a a value for the electric field at which point the air will break down. you also need the area of one of the capacitors and the capacitence
When inserting subcutaneous pellets how long will they last before replacing?
When inserting subcutaneous pellets how long will they last before needing to be replaced?
Does current actually flow through a capacitor?
No. Current (or more specifically, charge) flows into one plate, and an opposing current (charge) flows out of the other plate, but the current (except for leakage current) does not flow across the dielectric. The result is that there is a charge differential between the plates.
When removing steering wheels fitted with SRS you must first?
Disconnect the negative battery cable off of the battery and allow enough time for the capacitor to discharge before beginning to work on any supplemental restraint system. 10 minutes should do it.
What is dielectric stress?
The dielectric stress is the stress placed upon a material when a voltage is placed across it.
Do capacitors store electrical energy?
Capacitors act like tiny storage batteries made of two plates separated by a thin insulator or air. When one plate is charged negative and the other positive, they build up a charge that remains when the current is removed. When its power is required, the circuit is switched to conduct current between the two plates, and the capacitor releases its charge.AnswerCapacitors don't really store charge at all. They allow negative charge to be transferred from one plate to the other, thus establishing an electric field between their plates. But there is no net increase in charge -the amount of charge on the capacitor's plates, after 'charging', is exactly the same as there was before 'charging' -it's just moved around! What capacitors 'store' is energy, not charge.
Can inserting your NuvaRing prior to your period cause it to be missed or late?
Yes, inserting NuvaRing before your period can delay bleeding.
Is the patient sedated before inserting a feeding tube?
Yes.
Where is the knowledge of dielectric strength helpful?
One field in which this is helpful is in the manufacture of insulating materials. Dielectric strength determines the strongest electric field an insulator can withstand before it fails. For example, if the insulation around a wire melts or breaks, the insulator's dielectric strength is compromised.
How does a 1 farad capacitor work?
Answer The easiest way is to connect it directly to the battery. Make sure the polarity matches up. (-ve to -ve, and +ve to +ve). Because it is 1F, it will take some time to charge. (probably a minute or two.) In that way, the capacitor will charge to whatever the voltage of the battery. But won't be fully charged,
Do doctors numb arm before inserting the contraceptive implant?
yes
