A circular loop of 20 turns carries a cu

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Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

A circular loop of 20 turns carries a current of 5.0 A. If the magnetic field at the centre of the loop is 1.57 mT, the radius of the loop would be:

Options:

2 cm

4 cm

3.14 cm

6.28 cm

Correct Answer:

4 cm

Explanation:

The correct answer is Option (2) → 4 cm