who is faraday and explain his laws
Answers
Faraday’s Law
Now that we have a basic understanding of the magnetic field, we are ready to define Faraday’s Law of Induction. It states that the induced voltage in a circuit is proportional to the rate of change over time of the magnetic flux through that circuit. In other words, the faster the magnetic field changes, the greater will be the voltage in the circuit. The direction of the change in the magnetic field determines the direction of the current.
We can increase the voltage by increasing the number of loops in the circuit. The induced voltage in a coil with two loops will be twice that with one loop, and with three loops it will be triple. This is why real motors and generators typically have large numbers of coils.
Michael Faraday (1791-1867) is probably best known for his discovery of electromagnetic induction, his contributions to electrical engineering and electrochemistry or due to the fact that he was responsible for introducing the concept of field in physics to describe electromagnetic interaction.
Faraday's law, due to 19ᵗʰ century physicist Michael Faraday. This relates the rate of change of magnetic flux through a loop to the magnitude of the electro-motive force \mathcal{E}E induced in the loop. The relationship is
\mathcal{E} = \frac{\mathrm{d}\Phi}{\mathrm{d}t}E=
dt
dΦ
The electromotive force or EMF refers to the potential difference across the unloaded loop (i.e. when the resistance in the circuit is high). In practice it is often sufficient to think of EMF as voltage since both voltage and EMF are measured using the same unit, the volt.
The take-away point here is that a wire moving in a field does not necessarily represent an ideal voltage source; the voltage you might measure with a high-impedance voltmeter would only equal the EMF if the load is small.
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