Question

plz answer me guys ​

Answer 1

Answer:

on the priciple of Flemings right hand rule

when turbine rotates it experiences some force as well as there is magnetic field lines due to these current start generating and it changes its direction ..

Answer 2

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principal of working of AC generator:-

AC generator works on the principle of Faraday's Laws of electromagnetic induction. According to it, when there is change of magnetic flux through a conductor loop, an emf is induced across the ends of the loop. The induced emf is such that it opposes the cause that induced it. It is given as negative of rate of change of magnetic flux through the circuit.

ε=− dϕB/dt

By law of conservation of energy, the kinetic energy supplied by the external means to rotate the coil is converted into electrical energy.