COMEDK · Physics · 21. Magnetic Effects of Current
Two identical concentric coils \(X\) and \(Y\) carrying currents in the ratio \(1: 2\) are arranged in mutually perpendicular planes. If the magnetic field due to coil \(X\) is \(B\), then the net field at their common centre is
- A \(B\)
- B \(2 B\)
- C \(3 B\)
- D \(\sqrt{5} B\)
Answer & Solution
Correct Answer
(D) \(\sqrt{5} B\)
Step-by-step Solution
Detailed explanation
As two coils are mutually perpendicular, so the field produced by them will also be perpendicular to each other as shown The two coils are identical, so magnetic field, \(B \propto I\) or \(\quad \frac{B_{x}}{B_{y}}=\frac{I_{x}}{I_{y}}=\frac{1}{2}\)…
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