With the use of an alternating current in the main coil, we can keep the magnetic field changing and keep the magnetic field changing.A magnetic field is created in the secondary coil as a result of this.Due to the alternating nature of the current, the magnetic field similarly varies between positive and negative poles.
The secondary coil experiences an alternating EMF as a result of the changing magnetic field.
How is EMF induced in secondary of a transformer?
When it comes to transformers, how is emf induced in the secondary of the transformer?Essentially, a transformer is made up of two electrically isolated coils that operate on Faraday’s principle of ″mutual induction,″ which states that an EMF is induced in a transformer’s secondary coil as a result of the magnetic flux generated by the voltages and currents flowing in the primary coil winding.A transformer is a device that converts electrical energy into mechanical energy.
How can an EMF be induced in a coil?
If the magnetic flux across the coil changes, as we have seen, an emf may be generated in the coil, and this is what we want to do. The rate at which the shift occurs is also important; a rapid change produces more emf than a slow change. Faraday’s law of induction expresses this concept succinctly. Remember that the flow via a loop of size A is given by the equation
What is the induced EMF when the magnetic flux changes?
An induced emf is produced only during times of change in magnetic flux, and only while the change is taking place. Nothing can cause the induced emf to change, hence it is zero. As shown in (b), the magnetic field is consistently raised from 0.3 T to 0.8 T in a time span of 1.0 second. What is the induced emf in the coil at the time when the change is taking place?
What is the function of the secondary coil in a transformer?
As a result, the current in the primary coil (also known as magnetizing current) creates alternating flux in the transformer’s core as a result of this. A secondary coil is connected to this alternating flux through the phenomena of mutual induction, and an emf is generated in the secondary coil as a result of the induced emf.