Moving Charges and Magnetism

Question: The magnetic induction at the centre O in the figure shown is

1) $\frac{{{\mu _0}i}}{4}\left( {\frac{1}{{{R_1}}} - \frac{1}{{{R_2}}}} \right)$

2) $\frac{{{\mu _0}i}}{4}\left( {\frac{1}{{{R_1}}} + \frac{1}{{{R_2}}}} \right)$

3) $\frac{{{\mu _0}i}}{4}({R_1} - {R_2})$

4) $\frac{{{\mu _0}i}}{4}({R_1} + {R_2})$

Solution:

Explanation: No Explanation

Biot-Savart's Law Amperes Law

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