Electricity and the operation of induction motors

In summary, electricity passing through a conductor creates a magnetic field around it. An induction motor uses this principle to work. The energy or electricity that passes through a green earthing wire is not conserved and can be used in the future. These three things are all related to the motion of electrons. This phenomena can be explained through various theories such as the Biot Savart law and Maxwell's equations. Induction motors are commonly used in domestic gadgets and inverters also work based on the flow of electrons. However, the Earth wire does not typically carry current and serves as a safety feature, with the majority of energy being conserved in a functioning circuit.
  • #1
shina
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How electricity passing through a conductor produces magnetic field around it. How an induction motor works. The energy or electricity which passes trough green earthing wire is transmitted into the ground. Why this energy is not conserved and can be used in future. All these three things are connected to the motion of electrons. Can this phenomena can be explained. How induction motors are used in various domestic gadgets. How inverter works. All this is connected to the flow of electrons only.
 
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  • #2
shina said:
How electricity passing through a conductor produces magnetic field around it.
There are different ways to answer this question, but it depends largely on your background.

Are you familiar with the Biot Savart law or Maxwell's equations? Are you familiar with Coulomb's law and special relativity?

shina said:
The energy or electricity which passes trough green earthing wire is transmitted into the ground. Why this energy is not conserved and can be used in future.
This is not correct. In a functioning circuit very little energy goes into the ground. Energy is conserved.
 
  • #3
Well, each question has a different explanation. It would be better if you created separate threads for each question.
shina said:
All this is connected to the flow of electrons only.
Yes. That is called electric current.
shina said:
Why this energy is not conserved and can be used in future.
Could you elaborate this? Energy is always conserved. That's one of the fundamental governing laws of the universe.
 
  • #4
No current flows through the 'green' Earth wire in normal circumstances. It is a safety feature and , like a lifeboat on a cruise ship, you hope that it will never be needed. You should find out what the function of the Earth wire is before you feel able to talk about its role in conservation of energy.
 
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Likes Dale
  • #5
Just because electric current flows through a conductor doesn't mean electrical power is being dissipated by that conductor. Try a problem with I2R through the conductors and through the load.
 

1. What is electricity and how does it work?

Electricity is the flow of electrons through a conductor, such as a wire. It is created when a source of energy, such as a power plant, causes a large number of electrons to move in the same direction. This flow of electrons can be harnessed and used to power various devices and machines.

2. What is an induction motor and how does it work?

An induction motor is a type of electric motor that uses electromagnetic induction to produce motion. It consists of a stator, which contains the stationary windings, and a rotor, which contains the rotating windings. When an alternating current (AC) is supplied to the stator, it creates a rotating magnetic field that induces a current in the rotor, causing it to rotate and power the motor.

3. What are the main components of an induction motor?

The main components of an induction motor include the stator, rotor, bearings, and housing. The stator is made up of a laminated core with insulated windings that create the magnetic field. The rotor is also made up of a laminated core with conductive windings that interact with the stator's magnetic field. Bearings are used to support the rotor and allow it to rotate smoothly. The housing provides protection and support for the internal components.

4. How efficient are induction motors?

Induction motors are highly efficient, with efficiency rates ranging from 85% to 95%. The exact efficiency depends on various factors such as the design, size, and operating conditions of the motor. However, they are generally more efficient than other types of motors, such as brushed DC motors, which have efficiency rates of around 75%.

5. What are the main applications of induction motors?

Induction motors are used in a wide range of applications, including industrial machinery, pumps, fans, compressors, and household appliances such as refrigerators and washing machines. They are also commonly used in electric vehicles, elevators, and other transportation systems. Induction motors are preferred for these applications due to their high efficiency, reliability, and low maintenance requirements.

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