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The following figure shows four wire loo...

The following figure shows four wire loops, with edge lengths of either Lor 2L. All four loops will move through a region of uniform magnetic field B (directed out of the page) at the same constant velocity. (Corresponding to loop mentioned in Column II, information on induced emf is provided in Column I, match them correctly).

Text Solution

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The correct Answer is:
(a) `to` (r), (s); (b) `to` (p), (q); (c) `to` (r), (s); (d) `to` (p), (q)
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Knowledge Check

  • The figure shows four wire loops, with edge length of either L or 2L . All four loops will move through a region of uniform magnetic field vecB (directed out of the page) at the same constant velocity . Rank the four loops according to the maximum magnitude of the e.m.f. induced as they move through the field, greatest first

    A
    `(e_(c)=e_(d))lt(e_(a)=e_(b))`
    B
    `(e_(c)=e_(d))gt(e_(a)=e_(b))`
    C
    `e_(c)gte_(d)gte_(b)gte_(a)`
    D
    `e_(c)lte_(d)lte_(b)lte_(a)`

  • The four wire loops shpwn figure have vertical edge lengths of either L,2L or 3L . They will move with the same speed into a region of uniform magnetic field vec(B) directed out of the oage. Rank them according to the maximum magnitude of the induced emf greatest to least.

    A
    `1` and `2` tie, then `3` and `4` tie
    B
    `3` and `4` tie, then `1` and `2` tie
    C
    `4,3,2,1`
    D
    `4` then, `2` and `3` tie and then `1`

  • A circular loop of wire is positioned half in and half out of a square region of uniform magnetic field directed in the +z direction, out of the paper, as shown in the following figure. To induce a counterclockwise current in this loop

    A
    Move it in the +y direction
    B
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    C
    Move it in the +x direction
    D
    Move it in the -y direction

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