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How Headphones Convert Electrical Energy To Sound



2 years ago

~1.2 mins read
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Headphones are also similar to that of the loud speakers. The main functionality of the headphones is to convert electric energy into sound energy

When a fluctuating electric current flows through the coil(present in the earbud), it becomes a temporary electromagnet, attracted and repelled by the permanent magnet (already present in the earbud). As the coil moves, it moves the cone (diaphragm) back and forth, pumping sound waves into the ear.

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Cinque Terre
The electric current varies with respect to the sound waves. Thus, the diaphragm movement varies with respect to sound

The headphones mainly consists of two parts : 
1. The earbud and 
2.
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The jack. 

An earbud consists of all the arts mentioned above. It's connected to the jack with two wires. To carry back and forth the signals. 

The jack is mainly used to close the current loop coming from the circuit (earbud) in order to make sound. 

All headphone plugs have conductors. Conductors are the contact points of the plugs that close the circuit. A headphone plug has a minimum of 2 conductors and commonly up to 5

The 2 conductor plugs will have 'Tip' & 'Sleeve'. The connection is fairly straightforward here. 

One connector is used to carry the audio signal while the other acts as a return path and ground. 

The ground acts as a reference point for the signal but it also picks up interference noises like an antenna. 

The longer the cable, the higher chance that more noise will be picked up. 

In 3 conductor plugs, there's an additional ring which will be used to conduct microphone signals.
.

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Chidexstar (Basic)   2 yrs
Drones have been a prominent topic of conversation for the last couple years and have quickly become adopted by the public. Drones, also known as Unmanned Aerial Vehicles (UAV) are useful for a number of things. They can deliver packages, surveillance, photography, search and rescue, and much more. Unfortunately some people use drones for things they shouldn’t, so their safety and necessity is hotly debated. The fact drones can perform dangerous tasks once only possible if done by a human being is very appealing to many, however, drones being used for surveillance has made many people uncomfortable. There have also been several instances of drones interfering with planes, often resulting in collisions. Whether you think drones are a good idea or not, here are ten things you should know about them.The First Armed DronesThe first documented case of an armed drone being deployed was in November 2001 to target an al-Qaeda member linked to the September 11th attacks.
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Chidexstar (Basic)   2 yrs
Drones have been a prominent topic of conversation for the last couple years and have quickly become adopted by the public. Drones, also known as Unmanned Aerial Vehicles (UAV) are useful for a number of things. They can deliver packages, surveillance, photography, search and rescue, and much more. Unfortunately some people use drones for things they shouldn’t, so their safety and necessity is hotly debated. The fact drones can perform dangerous tasks once only possible if done by a human being is very appealing to many, however, drones being used for surveillance has made many people uncomfortable. There have also been several instances of drones interfering with planes, often resulting in collisions. Whether you think drones are a good idea or not, here are ten things you should know about them.The First Armed DronesThe first documented case of an armed drone being deployed was in November 2001 to target an al-Qaeda member linked to the September 11th attacks.
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Ishola (Premium)   2 yrs
Cool cool cool
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Ishola (Premium)   2 yrs
Cool cool cool
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Dasod (Basic)   2 yrs
Kkkk
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