What is the magnetic field due to an inf

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Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

What is the magnetic field due to an infinite current carrying wire ?

Options:

μ_οI/4πr

μ_οI/2πr

μ_οI/2r

μ_οI/2πr²

Correct Answer:

μ_οI/2πr

Explanation:

The expression for the magnetic field due to an infinite wire carrying current : B = μ_οI/2πr