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NEETPhysicsMagnetic Effects of Current

What additional mass 'm' must be added to regain balance in this scenario when a 100-turn rectangular coil ABCD (in the XY plane) hangs from one arm of a balance, a mass of 500g is added to the other arm to balance the weight of the coil, a current of 4.9 A passes through the coil, and a constant magnetic field of 0.2 T acts inward (in the XZ plane), switching on such that only arm CD of length 1 cm lies in the field

Options

  1. A1g
  2. B2g
  3. C3g
  4. D4g

Correct answer

A. 1g

Step-by-step solution

Correct Option is : (A) 1g

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