Generated EMF, or Armature EMF, is the EMF of rotation in a generator. It is induced in the armature winding when the armature rotates in a magnetic field. The equation for generated EMF in a DC generator is: E = V + Ia Ra Where: Z: Conductor per pole P: Number of poles Φ: Flux per pole N: Speed in rpm A: Number of parallel paths Ia: Armature current Ra: Armature resistance V: Terminal voltage EMFs are produced by everyday items like mobile phones and electrical appliances. They are used to transmit information wirelessly and to heat things like food. There are two main... Show more Generated EMF, or Armature EMF, is the EMF of rotation in a generator. It is induced in the armature winding when the armature rotates in a magnetic field. The equation for generated EMF in a DC generator is: E = V + Ia Ra Where: Z: Conductor per pole P: Number of poles Φ: Flux per pole N: Speed in rpm A: Number of parallel paths Ia: Armature current Ra: Armature resistance V: Terminal voltage EMFs are produced by everyday items like mobile phones and electrical appliances. They are used to transmit information wirelessly and to heat things like food. There are two main categories of EMFs: Higher-frequency EMFs: These include x-rays and gamma rays. They are in the ionizing radiation part of the electromagnetic spectrum and can damage DNA or cells directly. EMFs: These influence metabolic processes in the human body and exert various biological effects on cells. Related: Electrical Machines Practice Test: Magnetic Circuits Show less
Generated EMF, or Armature EMF, is the EMF of rotation in a generator. It is induced in the armature winding when the armature rotates in a magnetic field.
The equation for generated EMF in a DC generator is: E = V + Ia Ra
Where: Z: Conductor per pole P: Number of poles Φ: Flux per pole N: Speed in rpm A: Number of parallel paths Ia: Armature current Ra: Armature resistance V: Terminal voltage
EMFs are produced by everyday items like mobile phones and electrical appliances. They are used to transmit information wirelessly and to heat things like food.
There are two main categories of EMFs: Higher-frequency EMFs: These include x-rays and gamma rays. They are in the ionizing radiation part of the electromagnetic spectrum and can damage DNA or cells directly. EMFs: These influence metabolic processes in the human body and exert various biological effects on cells.
Related: Electrical Machines Practice Test: Magnetic Circuits
Join 4M+ learners. Unlock unlimited quizzes, wrong-answer tracking, flashcards + reminders, study guides, and 1-on-1 challenges.