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AP EAMCET202017 Sep 2020Evening ShiftPhysicsMagnetic Properties of MatterActual

If the angles of dip at two places are (30^ ) and (45^ ) respectively, then the ratio of horizontal components of earth's magnetic field at the two places will be

Options

  1. A( 3 : 2 )
  2. B(1: 2 )
  3. C(1: 3 )
  4. D(1: 2 )

Correct answer

A. ( 3 : 2 )

Step-by-step solution

If (B_e ) be the earth's net magnetic field, then the ratio of horizontal components of earth's magnetic field at the two places is given as ( aligned H₁ H₂ & = B_e ₁ B_e ₂ = ₁ ₂ & = 30^ 45^ [ ₁=30^ , ₂=45^ ] & = 3 / 2 1 / 2 = 3 2 H₁: H₂ & = 3 : 2 aligned )

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