0
Which is most dangerous between high capacitance and high voltage regarding capacitors?
Wiki User
∙ 13y ago
As from a human contact perspective:
High voltage alone poses not much of a danger if the current is very low. It may be rather uncomfortable but a normal healthy person with no heart disorder should not be endangered with high voltage and very low current.
Low voltage capable of high current poses not much of a threat to humans either as long as our skin is dry.
The combination of High voltage capable of high current is deadly to most humans.
A capacitor of high capacitance is normally a low voltage one.
High voltage is normally found only in very low capacitances.
Which of them that are most dangerous is a bit difficult to answer without more information.
A high capacitance capacitor with low voltage may explode violently when connected to high voltage source capable of high current. This is very dangerous. Although not killingly dangerous, you can easily loose an eye or two.
A high voltage capacitor is not likely to explode due to high voltage. The current it carries when charged can be rather uncomfortable but not likely dangerous as in life threatning. This because the leads are so close together (current would need to go across heart in order to cause lethal problems in normal healthy people) so unless you force yourself to hold one lead with one hand and then touches the other lead, then it poses as no particular threat. Even if doing that, the current carried by the capacitor is not likely to be able to cause heart to stop. It might make a jump though.
I would place my bet on High Capacitance due to the danger of explosion.
Be sensible when experimenting with electronics, and you should not need to think about this :-)
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What is a De Sauty's bridge and give explanation about it?
De Sauty's bridge is an electric component that provides a method for making a comparison between two capacitors. It measures the values in terms of a standard capacitance.
Why use capacitors with crystal oscillator?
There are two kinds of crystal oscillators. One operates at what is called the "series resonance" of the crystal. This resonance is the frequency at which the (AC) impedance between the pins of the crystal is almost zero. The frequency is independent of how much capacitance happens to be in parallel with the crystal - its inside the oscillator and part of the circuit board, etc. But, even frequency that the oscillator runs at.The other kind of oscillator oscillates at "parallel resonance"of the crystal. At this frequency, the impedance from pin to pin of the crystal is almost infinite. This frequency depends on how much capacitance is connected in parallel with the crystal. This parallel capacitance is called "load capacitance". Generic signal-inverter oscillator is this kind of oscillator.The common oscillator connection is for the crystal to be connected from the inverter output to the input. And, there is a capacitor at each end of the crystal to ground. The NET load capacitance is SERIES equivalent value of those two capacitors.PLUS stray capacitance from the circuit board and the guts of the oscillator. Suppose that the crystal is rated for 22pF load capacitance. The stray capacitance is about 7pF. So, that leave 15pF to be made up from discrete external capacitors. If the external capacitors are equal, then their equivalent is half of their individual value. Thus, in this case, we would want a pair of 30pF capacitors.
What is the difference between electrolytic capacitors and normal capacitors?
because normal capacitors does not have any polaririties.
What is meant by stray capacitance?
ANSWER Stray capacitance is the capacitance in a circuit not caused by capacitor components. There is a small capacitive effect, often on the order of a few picofarads, between leads of ICs, traces on a PCB, wires in a cable, the power and ground planes in a PCB, etc. In high-speed circuits, stray capacitance can be enough to completely change the operation of a circuit -- even to the point of keeping it from working as designed. Note that capacitor "components" can include PCB traces specifically designed to act as capacitors.
What is difference between capacitor and super capacitor?
Super capacitor have high capacitance compare to normal capacitor. Super capacitor use two layer of dielectric medium whereas in normal capacitor single medium dielectric. Because of this super capacitor use as alternate power source for RTC when computer is off.
What is the difference between monolithic ceramic and mutilayer ceramic capacitors?
Ceramic Multilayer vs Monolithic CapacitorBoth multilayer and monolithic capacitors have multiple layers. The main difference between the two is the manufacturing process. Monolithic capacitors have a paste of ceramic material applied between the conductive layers. After this paste is applied the capacitors are then baked. Multilayer capacitors have the ceramic material sprayed onto the conductive layers. This generally means that monolithic capacitors can't go as high in capacitance because the amount of layers is limited due to their manufacturing process.
Why the charge is not equal if you connect the capacitors on parallel?
When capacitors are connected in parallel, the total capacitance is the sum of the individual capacitors' capacitances. If two or more capacitors are connected in parallel, the overall effect is that of a single equivalent capacitor having the sum total of the plate areas of the individual capacitors. As we've just seen, an increase in plate area, with all other factors unchanged, results in increased capacitance.The total capacitance is more than any one of the individual capacitors' capacitances.The equivalent capacitance of two or more capacitors connected in parallel is simply the sum of the individual capacitances.
What is the use of dielectric between capacitors?
A dielectric is an insulator between the plates of a capacitor. They allow us to build the plates closer together, without allowing them to short together, thereby increasing capacitance.
How introduction of a die-electric increases the capacitance of the capacitor?
By connecting a capacitor in series the total dielectric thickness between the positive and negative terminals of the source, since you double dielectric thickness has effectively doubled, the total capacitance is one half of either capacitors.
Do electrical devices that are plugged in but not turned on still consume electricity?
Electronic circuits often contain filter circuits that are ahead of the power switch. These Filters contain capacitors between phase and neutral, so called X-Capacitors and between phase and ground respectively neutral and ground, so called Y-Capacitors. These capacitors in conjunction with the the applied alternating voltage are causing a current to flow. Often built in over-voltage protection circuits have got an capacitance (even if it is low) and are causing a minor current to flow. In the stricht sense even the power cord has got a small capacitance and causes a minor current to flow.
Difference between electrolytic and non-electrolytic capacitors?
Electrolytic Capacitors:1. It provides high capacitance in small volume.2. It has got polarity.3. It is not suitable for high frequencies due to losses in dielectrics.4. It is generally available in 1-100 µF rangeNon-Electrolytic Capacitors:1. Its capacitance depends on dielctric constant of the bulk.2. It doesn't have polarity.3. It is widely used at all frequencies.4. It ranges from pico Farads to fractions of µF.
What is a De Sauty's bridge and give explanation about it?
De Sauty's bridge is an electric component that provides a method for making a comparison between two capacitors. It measures the values in terms of a standard capacitance.
Why use capacitors with crystal oscillator?
There are two kinds of crystal oscillators. One operates at what is called the "series resonance" of the crystal. This resonance is the frequency at which the (AC) impedance between the pins of the crystal is almost zero. The frequency is independent of how much capacitance happens to be in parallel with the crystal - its inside the oscillator and part of the circuit board, etc. But, even frequency that the oscillator runs at.The other kind of oscillator oscillates at "parallel resonance"of the crystal. At this frequency, the impedance from pin to pin of the crystal is almost infinite. This frequency depends on how much capacitance is connected in parallel with the crystal. This parallel capacitance is called "load capacitance". Generic signal-inverter oscillator is this kind of oscillator.The common oscillator connection is for the crystal to be connected from the inverter output to the input. And, there is a capacitor at each end of the crystal to ground. The NET load capacitance is SERIES equivalent value of those two capacitors.PLUS stray capacitance from the circuit board and the guts of the oscillator. Suppose that the crystal is rated for 22pF load capacitance. The stray capacitance is about 7pF. So, that leave 15pF to be made up from discrete external capacitors. If the external capacitors are equal, then their equivalent is half of their individual value. Thus, in this case, we would want a pair of 30pF capacitors.
What is cylindrical capacitor?
A cylindrical capacitor is a type capacitor in which two conducting cylinders are used and the dielectric medium is placed in between them .The outer most cylinder is earthed .The capacitance of these capacitors are higher than other
What is the relationship between capacitance and frequency?
This is a very broad generalization, but in general, increasing the value of one or more capacitors in an electronic circuit will decrease the resonant frequency of one or more sections of the circuit.
What is the difference between electrolytic capacitors and normal capacitors?
because normal capacitors does not have any polaririties.
Definition of a capacitance in mosfet?
Capacitance in mosfet is of three types: gate capacitance diffusion capacitance routing capacitance Gate capacitance: limits the speed of the device t which it can be operated Diffusion capacitance: It is the capacitance due to charge carriers between drain and source. Routing capacitance: It is the capacitance of the metal which is deposited on the top of oxide layer.
