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A coil has 1000 turns and 500 cm^(2) as ...

A coil has 1000 turns and `500 cm^(2)` as its area. It is placed at right angles to a magnetic field of `2xx10^(-5) Wb m^(-2)`. The coil is rotated through `180^(@)` in 0.2s. Find the average emf induced in the coil.

Text Solution

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The correct Answer is:
10 m V
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Knowledge Check

  • A coil has 1,000 turns and 500 cm^(2) as its area. The plane of the coil is placed at right angles to a magnetic induction field of 2 xx 10^(-5) web//m^(2) . The coil is rotated through 180^(@) in 0.2 second. The average emf induced in the coil, in milli volts, is :

    A
    `5`
    B
    `10`
    C
    `15`
    D
    `20`

  • A coil has 4000 turns and 500 cm^2 as its area. The plane of the coil is placed at right angles to a magnetic induction field of 4 xx 10^(-5) web/ m^2 . The coil is rotated through 180^@ in 0.5 seconds. The average emf induced in the coil, in milli volts, is

    A
    15
    B
    20
    C
    16
    D
    32

  • A coil has an area of 0.05 m^(2) and it has 800 turns. It is placed perpendicular in a magnitude field of strength 4xx10^(-5)Wb//m^(2) , it is rotated through 90^(@) in 0.1 sec. the average e.m.f. induced in the coil is

    A
    `0.056V`
    B
    `0.046V`
    C
    `0.026V`
    D
    `0.016V`

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