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A circular loop carrying a current is re...

A circular loop carrying a current is replaced by an equivalent magnetic dipole. A point on the axis of the loop is in

A

end-on position

B

broadside-on position

C

both

D

none

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A circular loop carrying a current is replaced by an equivalent magnetic dipole. A point on the loop is in

    A
    end-on position
    B
    broadside-on position
    C
    both
    D
    none

  • Magnetic induction at the center of a circular loop carrying a current is 'B' . If 'A' is the area of the coil, the magnetic dipole moment of the loop is

    A
    `(BA^(2))/(mu_(0)pi)`
    B
    `(BA(sqrt(A)))/(mu_(0))`
    C
    `(BA(sqrt(A)))/(mu_(0)pi)`
    D
    `(BA)/(mu_(0))sqrt((A)/(pi))`

  • The dipole moment of a circular loop carrying a current I, is m and the magnetic field at the centre of the loop is B_(1) . When the dipole moment is doubled by keeping the current constant, the magnetic field at the centre of the loop is B_(2) . The ratio (B_(1))/(B_(2)) is:

    A
    `(1)/(sqrt(2))`
    B
    2
    C
    `sqrt(3)`
    D
    `sqrt(2)`

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