can someone explain to me the link between these two formulas : >𝑁Ф = 𝐵AN cos 𝜃 >emf induced in a rotating coil 𝜀 = 𝐵ANwsin (𝜔 t)
-someone told me you just differentiate the first one to get the 2nd one which I can see but why is that ?
Have you studied Faraday's law of electromagnetic induction?
Faraday's law of electromagnetic induction states the following: The emf ε induced is the negative change in the magnetic flux linkage Φm per unit time. Since the magnetic flux linkage is 𝐵AN cos (𝜔 t) , then the change in the magnetic flux linkage Φm per unit time is just differentiating the magnetic flux linkage Φm with respect to time.