ElectroMagnetic InductionEasy
Question
A metallic disc of radius ′R′ is rotating about its geometrical axis with constant angular speed ′w′ in external magnetic field B which is perpendicular to the plane of the disc then induced emf between the centre and any peripherical point of the disc is given by :-
Options
A.πωBR2
B.ωBR2
C.πωB
D.ωB
More ElectroMagnetic Induction Questions
A thin semicircular ring of radius R is falling with its plane vertical in a horizontal magnetic induction . At the posi...A flexible wire bent in the form of a circle is placed in a uniform magnetic field perpendicular to the plane of the coi...A conducting loop of finite resistance lies on the $x - y$ plane. There is a constant magnetic field in the $z$ directio...Two circular coils can be arranged in any of the three situations shown in the figure. Their mutual inductance will be...A rectangular loop has a sliding connector PQ of length l and resistance R Ω and it is moving with a speed v as sh...