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NEETPhysicsMagnetic Effects of Current

What is the magnitude of the magnetic field B at the center of a circular coil of wire consisting of 100 turns, each of radius 8.0 cm, carrying a current of 0.40 A?

Options

  1. A1.6 × 10 –3 T
  2. B3.1 × 10 –4 T
  3. C6.2 × 10 –4 T
  4. D4.0 × 10 –5 T

Correct answer

B. 3.1 × 10 –4 T

Step-by-step solution

Correct Option is : (B) 3.1 × 10 –4 T

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