Table of Contents
What are the advantages of inductors?
Inductors can store energy for a small period of time because the energy which is being stored as a magnetic field will be gone when the power supply is removed. Uses of inductors can be seen in computer circuits where power supplies can be switched.
What are the advantages of electronic ballasts over a magnetic ballast?
Electronic ballasts are more efficient and more compact in size and weight. They also provide the ability for continuous power adjustment at different settings. A disadvantage is that power fluctuations may cause a failure but this can be offset by adding a buffer capacitor. Operation of the ballasts generate heat.
How do ballasts for fluorescent lights work?
In a fluorescent lighting system, the ballast regulates the current to the lamps and provides sufficient voltage to start the lamps. Once the arc is established, the ballast quickly reduces the voltage and regulates the electric current to produce a steady light output.
Why capacitor is used in sodium Vapour lamp?
Metallised polypropylene film capacitors are designed to compensate the inductive idle current drawn by discharge lamps (fluorescent lamps, high-pressure mercury vapour lamps, high-pressure sodium vapour lamps and metal halide lamps with a ceramic discharge tube) in 50 Hz/60 Hz grids.
Why did Agapito Flores invented the fluorescent lamp?
Agapito Flores did not invent the fluorescent lamp. It’s a myth that was mistakenly presented as a fact in some Philippine school textbooks. Furthermore, he cannot be considered the inventor of a technology that has already existed since he was four years old.
Can a resistor be used as an inductor?
However, a real resistor is in general going to have more resistance and less inductance than a real inductor, so the resistor is going to have a much lower “Q factor” Q=ωL/R than the inductor, which means that it’s going to behave more like an ideal resistor and less like an ideal inductor than a real inductor would.