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21quad [" A coil of wire enclosing an ar...

21quad [" A coil of wire enclosing an area "100cm^(2)" is placed with its plane making an "],[" angle "60^(@)" with the magnetic field of strength "10^(-1)T" .What is the flux through "],[" the coil? If magnetic field is reduced to zero in "10^(-3)s" ,then find the induced "],[" emf? "]

Answer

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Knowledge Check

  • A coil of area 0.4m^(2) has 100 turns. A magnetic field of 0.04 Wb m^(-2) is acting normal to the coil surface. If this magnetic field is reduced to zero in 0.01 s, then the induced emf in the coil is

    A
    160V
    B
    250 V
    C
    270 V
    D
    320 V

  • A coil of radius 1cm and 100 turns is placed in a magnetic field of 10^(6) gauss such that its plane makes an angle 30^(@) with the field . The magnetic flux through the coil in S.I unit is

    A
    `0.5 pi Wb`
    B
    `0.5Wb`
    C
    `0.5xx10^(-4)Wb`
    D
    `5xx10^(-4)Wb`

  • A coil of area 10 cm^2 has 200 turns. Magnetic field of 0.1 Wb//m^2 is perpendicular to the plane of the coil. The field is reduced to zero in 0.1 s, the induced emf in the coil is

    A
    1V
    B
    0.2V
    C
    2V
    D
    0

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