Question

    A circular coil of wire consisting of 120 turns, each of radius 12 cm carries a current of 0.30 A. What is the magnitude of the magnetic field B at the centre of the coil? (π = 3.14 )

    A 18.84 × 10^−5 T Correct Answer Incorrect Answer
    B 20.84 × 10^−5 T Correct Answer Incorrect Answer
    C 18 × 10^−5 T Correct Answer Incorrect Answer
    D 10.84 × 10^−5 T Correct Answer Incorrect Answer

    Solution

    Practice Next

    Relevant for Exams: