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Why there is high resistance in experiment of flashing and quenching of capacitor the neon bulb?
Wiki User
∙ 10y ago
Because the product of (the resistance in the circuit) times (the capacitance in the circuit)
is called the "time constant" of the circuit, and it determines how fast the flashing and
quenching will take place. If you want the experiment to proceed slowly enough for you
to watch it happen, then you need a large ' RC ' product. Large-value resistors are
cheaper and easier to get than large-value capacitors designed to operate up to the
firing voltage of a neon bulb, so it's more practical to get a large ' RC ' product by using
a large-value resistor.
Wiki User
∙ 10y ago
Shanti Thakur
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Why in the experiment of flashing and quenching of capacitor the neon bulb start twinkling?
It is due to the charging and discharging of capacitor in the circuit....
Why in the experiment of flashing and quenching of capacitor the neon bulb starts twinkling?
because of charging and discharging
What is flashing and quenching potential for neon lamp?
the potential at which neon bub just start glow is called flashing potential.and quenching potential is a potential at which neon bulb stop to conduct..
How do flashing lights affect balance?
Flashing lights might affect the balance by causing a person to feel unsteady or confused when confronted by these lights. Flashing lights can also cause seizures that affect balance in some cases.Ê
What is flashing pendulum?
maybe it is a pendulum
Why in the experiment of flashing and quenching of capacitor the neon bulb start twinkling?
It is due to the charging and discharging of capacitor in the circuit....
Why in the experiment of flashing and quenching of capacitor the neon bulb starts twinkling?
because of charging and discharging
What is flashing and quenching potential for neon lamp?
the potential at which neon bub just start glow is called flashing potential.and quenching potential is a potential at which neon bulb stop to conduct..
Why quenching potential is always less than flashing potential?
because flashing potential is potential at which the neon bulb just start conducting or glowing ....while at quenching potential the bulb stops conducting.
When measuring resistance with a Digital multimeter what does the flashing display indicate?
contact was made.
What do you call the flashing white light at parties and clubs?
The flashing white light that may occur at parties and/or clubs is called a "strobe light." A "strobe light" is a high-intensity flashing beam of light produced by charging a capacitor to a very high voltage then discharging it as a high-intensity flash of light in a tube
If the car turn signal indicator is flashing fast?
usually it means that one of the bulbs it burned out. Flashers in the circuit need a certain resistance to flash correctly, if a bulb is out there is less resistance in the circuit.
Characteristics of relaxation oscillator?
A "Relaxation Oscillator" is an "R/C" oscillator, in which a Capacitor is charged from a DC (Direct Current) fixed voltage source, through a resistor. Connected across this Capacitor is a "device" that, initially, does NOT conduct any current. But when the Voltage on the Capacitor reaches a certain value (depending upon the characteristics of the "device") the "device" will "break down" or "avalanche", or suddenly drastically decrease in resistance. This causes the "device" to quickly start to discharge the Capacitor. However, when the Voltage across the Capacitor and its parallel connected "device' decreases with the discharge cycle, the "device" will suddenly return to its "non-conducting" state, and the Capacitor again begins to re-charge. The Capacitor again reaches the "break down" voltage of the "device", and the process continues, thus effectively creating "oscillations". One version of this circuit uses a simple Neon lamp (such as a NE-1) as the "device". Typically, the "break down" or "ignition" voltage of a neon lamp is around 70 volts. At this point, the gas in the lamp "ionizes", becoming highly conductive. However, when this voltage drops (as the lamp discharges the Capacitor) to about 50-60 volts, the lamp "goes out" (the neon gas is no longer ionized or conducting), and the Capacitor again starts to charge through the resistor. This form of the "Relaxation Oscillator" will not operate at high frequencies (such as Radio Frequencies), and was often used to just generate a "flashing light" (the Neon lamp). With the advent of semiconductors, a device called the Unijunction Transistor (UJT) was developed. It contained three leads, the Emitter, Base 1, and Base 2. The junction of the Resistor and Capacitor is connected to the Emitter, with the "bottom" of the Capacitor (and the negative side of the Voltage Source) connected to Base 1 Base 2 is connected to the positive side of the Voltage Source. Again, when the voltage on the Capacitor reaches the "break down" level, the UJT's "resistance" between the Emitter and Base 1 drastically drops, discharging the capacitor. However, when the discharging current through the UJT drops below a certain level, it again develops a high resistance between its Base 1 and the Emitter, and re-charging of the Capacitor begins again. UJT circuits can operate at higher frequencies than the Neon bulb circuit. Often a resistor is inserted between Base1 and the common or negative side of the voltage source, and the resulting discharge current produced voltage across this resistor is used to trigger other devices. Also, the voltage waveform across the Capacitor approaches a linear "sawtooth" waveform (depending on circuit component values), but not nearly as linear as other approaches. "Devices" of this type are considered to have a "negative resistance" characteristic, which is another discussion in itself.
How capacitor filter works?
The flux capacitor, which consisted of a regularly squared compartment with three flashing lights arranged as a "Y", was described by Doc as "what makes time travel possible". The device is the core component of Doc Brown's DeLorean.
Why is flashing-waterproofing called flashing?
Because it is flashed in
Why is 1995 thunderbird airbag flashing 53 or 35?
35 - passenger side air bag circuit low resistance or shorted 53 - intermittent or repaired air bag circuit shorted to ground
When was The Flashing Blade created?
The Flashing Blade was created in 1967.
