Moving Charges and Magnetism

Question: In the figure, what is the magnetic field at the point O

1) $\frac{{{\mu _0}I}}{{4\pi r}}$

2) $\frac{{{\mu _0}I}}{{4\pi r}} + \frac{{{\mu _0}I}}{{2\pi r}}$

3) $\frac{{{\mu _0}I}}{{4r}} + \frac{{{\mu _0}I}}{{4\pi r}}$

4) $\frac{{{\mu _0}I}}{{4r}} - \frac{{{\mu _0}I}}{{4\pi r}}$

Solution:

Explanation: No Explanation

Biot-Savart's Law Amperes Law

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