A plane spiral with a great number `N` of turns wound tightly to one another is located in a uniform magnetic field perpendicular to the spiral\'s plane.The outside radius of the spiral\'s turns is equal to a and inner radius is zero.The magnetic induction varies with time as `B=B_(0) sin omega t`, where `B_(0)` and `omega` are constants.The amplitude of `emf` induced in the spiral is `epsilon_(im)=1/xpia^(2) NomegaB_(0)`.Find out value of `x`.
A plane spiral with a great number `N` of turns wound tightly to one another is located
A plane spiral with a great number `N` of turns wound tightly to one another is located in a uniform magnetic field perpendicular to the spiral\'s plane.The outside radius of the spiral\'s turns is equal to a and inner radius is zero.The magnetic induction varies with time as `B=B_(0) sin omega t`, where `B_(0)` and `omega` are constants.The amplitude of `emf` induced in the spiral is `epsilon_(im)=1/xpia^(2) NomegaB_(0)`.Find out value of `x`.
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