Two wires wrapped over a conical frame form the coils 1 and 2. If they produce no net magnetic f...
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0Two wires wrapped over a conical frame form the coils 1 and 2. If they produce no net magnetic field at the apex \( P \), the value of \( \frac{i_{1}}{i_{2}} \) is
(A) \( \sqrt{\frac{r_{2}}{r_{1}}} \)
(B) \( \frac{r_{1}}{r_{2}} \)
(C) \( \left(\frac{r_{1}}{r_{2}}\right)^{2} \)
(D) \( \sqrt{\frac{r_{1}}{r_{2}}} \)
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