What is the purpose of a choke in tube light?

What is the purpose of a choke in tube light?

Choke is an inductor; hence it acts as a pure inductor. Inductor is having the properties of creating high voltage at stating. This high voltage is enough to trigger the tube lights starter.

What is the purpose of choke coil?

A choke coil is a part used in electrical circuits to allow DC current to flow through while blocking AC current from passing. These coils are used in a number of electrical devices. When used as part of a radio’s circuitry, it falls into one of two frequency classes: audio or radio.

What is the need of starter in tube light?

Fluorescent starters or glow starters are used to help fluorescent tubes and lamps ignite in the initial starting stage of their operation. Simply put, fluorescent starters are a timed switch. The switch opens and closes until the fluorescent tube ‘strikes’ and lights-up.

What is the use of choke what are its advantages?

If you use a common mode choke, it can attenuate the unwanted high frequency signals, while you would get better efficiency for knocking down the unwanted noise, and allowing your required signal to pass. Also common mode chokes can operate at a high current with high inductance values.

What is choke coil and explain its working?

A choke coil is an inductance coil of very small resistance used for controlling current in an a.c. circuit. It is a part used in the electrical circuits to allow DC current to flow through while blocking AC current from passing.

What is choke and starter?

A choke is a coil of wire. Fluorescent tubes/lamps are filled with mercury vapor. They use electric charge to excite mercury atoms in order to produce ultra violet light. A glow starter or commonly known as starter is used in the tube light circuit to provide an initial current to filaments of the tube light.

On what principle does choke work?

self induction
Hint: A choke coil works by the principle of self induction. Its main function is to provide AC resistance to the circuit. At the same time, it does not allow any resistance to the DC current.

Why is choke coil preferable to resistor?

A choke coil is preferred over resistances in a.c. circuit because a choke coil has large value of self inductance and hence, the power dissipation is 0 for choke coil. 1 there will be no effect on the flow of current as resistance is independent of frequency.

Can we start a tube light without a starter?

When you turn on a fluorescent tube, the starter is a closed switch. The filaments at the ends of the tube are heated by electricity, and they create a cloud of electrons inside the tube. Without the starter, a steady stream of electrons is never created between the two filaments, and the lamp flickers.

What is choke in fluorescent light?

The choke primarily serves to limit current flow to the correct level for the tube. It also can be used during startup to provide an inductive ‘kick’ forming a momentary higher-voltage pulse to start the lamp.

Why are chokes used in tube light starter?

Choke is an inductor; hence it acts as a pure inductor. Inductor is having the properties of creating high voltage at stating. This high voltage is enough to trigger the tube lights starter. At stating current I= maximum, therefore the voltage across the lighting will be maximum.

What is the function of choke coil or ballast?

The purpose of the choke is to provide a very high voltage initially between the filaments (across the two ends of the tube light). Again once the gas in the tube is ionized the choke provides a low voltage. A choke is a coil of wire. Fluorescent tubes/lamps are filled with mercury vapor.

How does a starter work on a tube light?

The starter is a current operated device and it has two metallic strips and a heater coil. The bimetallic strip comes in contact with fixed contact, before turning on the lamp. When the supply is given to the tube, the two electrodes get connected in series through the thermal switch.

What is the purpose of a choke in a fluorescent light?

The purpose of the choke is to provide a very high voltage initially between the filaments (across the two ends of the tube light). Again once the gas in the tube is ionized the choke provides a low voltage.