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MC
Question Practice

In a long straight wire carrying a current, the magnetic field strength at a distance R from the wire is given by which formula?

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MCQ_SA
CBSE
Class 12
Physics
Physics Part - I
MOVING CHARGES AND MAGNETISM
Question Bank

In a long straight wire carryi...

Single Answer MCQ
Q-00085418

In a long straight wire carrying a current, the magnetic field strength at a distance R from the wire is given by which formula?

1

B = μ₀ I / (2πR)

2

B = R / (μ₀ I)

3

B = 2πRμ₀ I

4

B = I / (2πRμ₀)

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