Day 147: JEE Mains Physics

1. A.
   $\frac{\mu_{0}}{2\pi}\frac{I}{r}(\pi + 1)\widehat{i}$
2. B.
   $- \frac{\mu_{0}}{2\pi}\frac{I}{r}(\pi - 1)\widehat{i}$
3. C.
   $\frac{\mu_{0}}{2\pi}\frac{I}{r}(\pi - 1)\widehat{i}$
4. D.
   $- \frac{\mu_{0}}{2\pi}\frac{I}{r}(\pi + 1)\widehat{i}$

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1. A.
   $\lbrack a/4,3a/2\rbrack$
2. B.
   $\lbrack a/2,2a\rbrack$
3. C.
   $\lbrack a/2,3a\rbrack$
4. D.
   $\lbrack a/4,2a\rbrack$

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1. A.
   $\lambda\alpha = \lambda p < \lambda e$
2. B.
   $\lambda\alpha > \lambda p > \lambda e$
3. C.
   $\lambda\alpha < \lambda p < \lambda e$
4. D.
   $\lambda\alpha = \lambda p > \lambda e$

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1. A.
   $4:5$
2. B.
   $16:25$
3. C.
   $64:125$
4. D.
   $25:16$

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1. A.
   11.2
2. B.
   5.6
3. C.
   2.8
4. D.
   8.4

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