What is the magnetic field at the center

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Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

What is the magnetic field at the center of a current carrying loop given by ?

Options:

μ_οI/2R

μ_οI/2πR

μ_οI/4πR

μ_οI/4R

Correct Answer:

μ_οI/2R

Explanation:

Expression for the magnetic field at the center of a current carrying loop : B = μ_οI/2R