Question

i dont know the origin of faraday's law,of cource
apart from the experiment,

Answer 1

the origin is from the fact that charges in motion with respect to a magnetic field experience a force

so when you move a magnet into a coil, the electrons in the coil are in relative motion with respect to the magnetic field.. and hence a force acts on the electrons and thus we have now an EMF!

Answer 2

yes that is right

Answer 3

right i khow this.
suppose the the equation of faraday's law,
when the magnetic field changes with time.........................
but suppose we have a constant field,and a charge particle that moves relative to this field,
in this case derivative time of B(magnetic field) is zero.
so,how you can explane the existence of that force?

Answer 4

the charges are in motion right??.. thats all that is needed
thats what we call as motional emf? remember?? field remains the constant.. but due to the motion of the conductor??

Answer 5

the curle of E is zero.(in this case)
so,how we can say E is not zero?

Answer 6

ooo.. there is a difference between potential difference and EMF!! .. you are trying to apply kirchoffs law.. that only holds good for conservative fields.. THIS IS NON CONSERVATIVE FIELD

i want you to go to YOUTUBE and type in

Professor walter lewin, complete breakdown of intuition!!!..

Answer 7

ok thnks