in your own words describe the working principle of DC motor and ac generator.
Answers
Answer:
Ac generator
When the armature rotates between the poles of the magnet upon an axis perpendicular to the magnetic field, the flux linkage of the armature changes continuously. Due to this, an emf is induced in the armature. This produces an electric current that flows through the galvanometer and the slip rings and brushes. The galvanometer swings between positive and negative values. This indicates that there is an alternating current flowing through the galvanometer. The direction of the induced current can be identified using Flemings right ✅ ✋ rule.
Dc generator
The working principle of a DC generator is based on Faraday’s laws of electromagnetic induction. When a conductor is placed in a varying magnetic field, an electromotive force gets induced within the conductor. This induced e.m.f magnitude is measured using the equation of the electromotive force of a generator. If the conductor is provided with a closed path, the induced current will circulate within the closed path. In this generator, field coils will generate an electromagnetic field as well as the armature conductors are turned into the field. Therefore, an electromagnetically induced electromotive force (e.m.f) will be generated within the armature conductors. The path of the induced current is provided by Fleming’s right-hand
Answer: the AC generator work on the principle that when the magnetic field changes around the conducting coil a current induced in it .
The DC moter works on the principle that when a current carrying coil placed in
a magnetic field it experiences a torque.
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