What is the principle behind measuring power in 3 phase systems using coils?

In summary, induced current is an electric current created in a conductor when it is exposed to a changing magnetic field. It is created through Faraday's law of induction and its magnitude is affected by the strength of the magnetic field, the speed of change, and the orientation of the conductor. The direction of induced current is determined by Lenz's law and it has many practical applications in everyday life, including generators, transformers, motors, wireless chargers, magnetic levitation trains, and metal detectors.
  • #1
canicon25
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Can anyone point me to a good site that explains current induction, specifically when a coil is placed around an energized, current carrying conductor? I would like to understand this principle to understand how power can measured in 3 phase power systems by using coils as a measuring element.
 
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  • #2
Try this: Induction Law[/url].

Power is then just V*I, like for any other circuit.
 
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1. What is induced current?

Induced current is an electric current that is produced in a conductor when it is exposed to a changing magnetic field.

2. How is induced current created?

Induced current is created through Faraday's law of induction, which states that a changing magnetic field can induce an electric current in a conductor.

3. What are the factors that affect the magnitude of induced current?

The magnitude of induced current is affected by the strength of the magnetic field, the speed at which the magnetic field changes, and the orientation of the conductor in relation to the magnetic field.

4. What is the direction of induced current?

The direction of induced current is determined by Lenz's law, which states that the induced current will flow in a direction that opposes the change in magnetic field that caused it.

5. How is induced current used in everyday life?

Induced current has many practical applications, such as in generators, transformers, and motors. It is also used in devices like wireless chargers, magnetic levitation trains, and metal detectors.

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