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The graph gives the magnitude B(t) of a ...

The graph gives the magnitude B(t) of a uniform magnetic field that exists throughout a conducting loop, with the direction of the field perpendicular to the plane of the loop. Rank the five regions of the graph according to the magnitude of the emf induced in the loop, greatest first.

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b, then d and e tie, and then a and c tie (zero)
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Knowledge Check

  • The graph gives the magnitude B (t) of a uniform magnetic field that exists throughout a conducting loop, perpendicular to the plane of the loop. Rank the five regions of the graph according to the magnitude of the emf induced in the loop, greatest first

    A
    `b gt (d=e) lt (a=c)`
    B
    `b lt (d=e) gt (a=c)`
    C
    `b lt d lt e lt c lt a`
    D
    `b gt (a=c) gt (d=e)`

  • The graph gives the magnitude B(t) of a uniform magnetic field that exists throughout a conductig loop, perpendicular to the plane of the loop. Rank the five regions of the graph according to the magnitude fo the emf induced in the loop, greater first

    A
    `bgt(d=e)lt(a=c)`
    B
    `bgt(d=e)gt(a=c)`
    C
    `bltdlteltclta`
    D
    `bgt(a=c)gt(d=e)`

  • a conducting loop of radius R is precent in a uniform magnetic-field B perpendicular the plane of the ring. If radius R varies as a function of time 't', as R_(0)+t . The e.m.f induced in the loop is

    A
    `2pi(R_(0)+t)B` clockwise
    B
    `pi(R_(0)+t)B` clockwise
    C
    `2pi(R_(0)+t)B` anticlockwise
    D
    zero