Field or magnetic intensity inside a long solenoid

1. A.
   $\pi T$
2. B.
   $2 \times 10^{- 3}\pi T$
3. C.
   $\frac{\pi}{5}\text{ }T$
4. D.
   $10^{- 4}\pi T$

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

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1. A.
   $88 \times 10^{- 4}\text{ }T$
2. B.
   $352 \times 10^{- 4}\text{ }T$
3. C.
   $176 \times 10^{- 4}\text{ }T$
4. D.
   $1232 \times 10^{- 4}\text{ }T$

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1. A.
   $2.4 \times 10^{3}\text{ }A{\text{ }m}^{- 1}$
2. B.
   $1.2 \times 10^{3}\text{ }A{\text{ }m}^{- 1}$
3. C.
   $2.4 \times 10^{- 3}\text{ }A{\text{ }m}^{- 1}$
4. D.
   $1\text{ }A{\text{ }m}^{- 1}$

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1. A.
   $\frac{5}{16}$
2. B.
   12.5
3. C.
   125
4. D.
   $\frac{32}{5}$

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