Generator and Transformer – Basic Principles
How it works
Generators convert mechanical energy into electrical energy by moving a conductor loop in a magnetic field (electromagnetic induction). Transformers change the voltage through electromagnetic induction between two coils (primary and secondary coil) on a shared iron core. A changing current in the primary coil is necessary for this; in school contexts, alternating current is usually used for this. The change in voltage ideally depends on the ratio of the number of turns. Energy losses arise, for example, through heating, eddy currents, and the remagnetization of the iron core.
A generator generates a voltage by moving a conductor in a magnetic field (induction). A transformer requires a changing magnetic field; in an ideal transformer, the voltage is proportional to the ratio of the number of turns of the coils.
An example
What happens if the rotational speed of a generator is increased?
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50 Exercises
To the learning unit →Own explanation and own practice exercises by AmyMath. Subject reference framework: Physics. The topic assignment may vary by federal state.