ectromagnetic induction between two current loops Main question: Is the electromotance induced in a coil of wire really the derivative of the magnetic flux passing through it?
Electromagnetic induction between two current loops
Main question: Is the electromotance induced in a coil of wire really the derivative of the magnetic flux passing through it?
Part 3: Reflection on the measurement of a current with an oscilloscope
The generation of a magnetic field in a current loop directly depends on the current flowing through it. In fact, it is necessary to have a measurement of current as a function of time since electromagnetic induction is a temporal phenomenon. It would be tempting to take an ammeter to make the measurement, but it is too slow to see the evolution of the current in this laboratory since the frequencies will be too high. We must therefore use an oscilloscope. However, this device can only measure the potential difference as a function of time, and not the current.
Think of a simple device that could be included in the circuit of the experiment that would measure a current with a voltmeter (an oscilloscope in our case). Here we are looking for a simple solution that would convert a current into a potential difference.
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