Day 330: JEE Mains Physics

1. A.
   $1:1$
2. B.
   $\sqrt{2}:1$
3. C.
   $2:1$
4. D.
   $4:1$

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1. A.
   $\frac{W}{100}$
2. B.
   $\frac{W}{91}$
3. C.
   $\frac{W}{3}$
4. D.
   $\frac{W}{9}$

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1. A.
   142
2. B.
   71
3. C.
   42
4. D.
   21

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1. A.
   $\frac{\mu_{0}}{4\pi}\frac{I}{a}\left\lbrack \frac{\pi}{2} + 1 \right\rbrack$
2. B.
   $\frac{\mu_{0}}{4\pi}\frac{I}{a}\left\lbrack \frac{3\pi}{2} + 1 \right\rbrack$
3. C.
   $\frac{\mu_{0}}{2\pi}\frac{I}{a}\left\lbrack \frac{\pi}{2} + 2 \right\rbrack$
4. D.
   $\frac{\mu_{0}}{4\pi}\frac{I}{a}\left\lbrack \frac{3\pi}{2} + 2 \right\rbrack$

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1. A.
2. B.
3. C.
4. D.

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