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AP EAMCET2010PhysicsMagnetic Properties of Matter

A short magnetic needle is pivoted in a uniform magnetic field of induction 1 ~T . Now, simultaneously another magnetic field of induction 3 ~T is applied at right angles to the first field; the needle deflects through an angle whose value is

Options

  1. A30^
  2. B45^
  3. C90^
  4. D60^

Correct answer

D. 60^

Step-by-step solution

In balance condition B₂=B₁ or = 3 1 = 3 =60^

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