AP EAMCET · PHYSICS · Magnetic Effects of Current
Three rings, each with equal radius ' \(r\) ' are placed mutually perpendicular to each other and each having centre at the origin of coordinate system. ' I ' is current passing through each ring. The magnetic field value at the common centre is

- A zero
- B \((\sqrt{3}-1) \frac{\mu_0 \mathrm{I}}{2 \pi r}\)
- C \(\sqrt{3} \frac{\mu_0 \mathrm{I}}{2 r}\)
- D \(\sqrt{2} \frac{\mu_0 I}{2 r}\)
Answer & Solution
Correct Answer
(C) \(\sqrt{3} \frac{\mu_0 \mathrm{I}}{2 r}\)
Step-by-step Solution
Detailed explanation
The magnetic field at the centre of the ring is…
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