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In a tangent galvanometer, the magnetic ...

In a tangent galvanometer, the magnetic induction produced by the coil of wire situated in the magnetic meridian is found to be equal to the horizontal component of the earth's magnetic field. The deflection produced in it will be

A

`30^(@)`

B

`60^(@)`

C

`45^(@)`

D

`90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
3
`B=B_(H)Tan theta`
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Knowledge Check

  • The horizontal component of earth’s magnetic field is zero at:

    A
    `45^@` Latitude
    B
    The geographic poles
    C
    Two particles in air are separated by a certain distance ‘R’. Their masses are `M_1`and `M_2`and they have equal and similar charges ‘Q’. If the resultant force acting among them is zero, then the value of Q is
    D
    The magnetic poles

  • The tangent galvanometer is set into magnetic meridian

    A
    to minimise error due to parallax.
    B
    to produce strong magnetic field.
    C
    to make magnetic field due to current carrying coil , exactly parallel to horizontal component of earth's magnetic field.
    D
    to make magnetic field due to current carrying coil , exactly perpendicular to horizontal component of earth's magnetic field.

  • The lines of forces due to earth's horizontal component of magnetic field are

    A
    Parallel straight lines
    B
    Concentric circles
    C
    Elliptical
    D
    Parabolic

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