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Explanation of the Topic „Electromagnetic Induction“
The reason for inducing a voltage, and thus the presence of a current, is the existence of free charge carriers and a changing magnetic field!
When the magnet is moved within the coil, the measuring device deflects in one direction. The faster the magnet is moved within the coil, the greater the deflection of the measuring device. A current flows in the circuit. This process is called „inducing“ a current.
If the magnet remains stationary within the coil, no current flows. The magnitude of the change in the magnetic field and the magnitude of the induced current are directly proportional.
When the magnet is pulled out of the coil, the measuring device deflects again, but in the opposite direction. In this case, a voltage with reversed polarity is generated.
It should be noted that the more turns the coil has, the greater the current intensity.
Further knowledge on the topic of the Electromagnetic Induction can be found in the book selection on Amazon:
Book Recommendation on Amazon: Electromagnetic Induction
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