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No net force acts on a rectangular coil ...

No net force acts on a rectangular coil carrying a steady current when suspended freely in a uniform magnetic field.

Text Solution

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The correct Answer is:
1
Net force on a current carrying closed loop in a uniform
magnetic field is zero.
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Knowledge Check

  • A rectangular coil of wire carrying a current is suspended in a uniform magnetic field. The plane of the coil is making an angle of 30^(@) with the direction of the field and the torque experienced by it is tau_(1) and when the plane of the coil is making an angle of 60^(@) with the direction of the field the torque experienced by it is tau_(2) . Then the ratio tau_(1):tau_(2) is

    A
    `1:sqrt(3)`
    B
    `sqrt(3):1`
    C
    `1:3`
    D
    `3:1`

  • A torque of 2.5 Nm acts on a current carrying rectangular coil of area 0.2 m^(2) , suspended vertically in a uniform magnetic field. What is the torque, if the rectangular coil is replaced by a plane circular coil of the same area? [all other quantities are unaltered]

    A
    `2.5 Nm`
    B
    `1.5 Nm`
    C
    ` 3 Nm`
    D
    `5 Nm`

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