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Sagot :
Answer:
The coils are not electrically connected. ... the primary coil current produces a magnetic field, which changes as the current changes. the iron core increases the strength of the magnetic field. the changing magnetic field induces a changing potential difference (voltage) in the secondary coil.
There is a voltage between the two terminals of the secondary coil because the magnetic field/magnetic flux is strengthened by the iron core. The secondary coil's potential difference (voltage) changes as the magnetic field changes. Energy is transferred by law of conversation .
What is magnetic flux?
Magnetic flux is the number of magnetic field lines passing through a closed surface.
What is electromagnetic induction?
There is a change in magnetic flux associated with a coil it gives rise to an induced current and hence an induced EMF in the coil. This phenomenon is called electromagnetic induction.
What is law of conservation of energy?
Law of conservation of energy states that energy can neither be created nor be destroyed . It can only be converted from one form to another form.
To know more about electromagnetic induction here
https://brainly.com/question/24214683
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