Coil of given resistance and inductance on an a.c. source: phase angle between voltage and current

1. A.
   $\tan^{-1}\!\left(\frac{4}{3}\right)$
2. B.
   $\tan^{-1}\!\left(\frac{3}{4}\right)$
3. C.
   $\tan^{-1}\!\left(\frac{3}{2}\right)$
4. D.
   $\tan^{-1}\!\left(\frac{4}{5}\right)$

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1. A.
   $\tan^{-1}\left(\frac{5}{4}\right)$
2. B.
   $\tan^{-1}\left(\frac{4}{5}\right)$
3. C.
   $\tan^{-1}\left(\frac{3}{4}\right)$
4. D.
   $\tan^{-1}\left(\frac{4}{3}\right)$

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1. A.
   $\tan^{- 1}(0.5)$
2. B.
   $\tan^{- 1}(1)$
3. C.
   $\tan^{- 1}(1.5)$
4. D.
   $\tan^{- 1}(2.0)$

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1. A.
   $\tan^{- 1}(1/5)$
2. B.
   $\tan^{- 1}(1/4)$
3. C.
   $\tan^{- 1}(1/3)$
4. D.
   $\tan^{- 1}(0.5)$

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1. A.
   $\tan^{- 1}\left( \frac{3}{4} \right)$
2. B.
   $\tan^{- 1}\left( \frac{4}{3} \right)$
3. C.
   $\tan^{- 1}\left( \frac{5}{4} \right)$
4. D.
   $\ \tan^{- 1}\left( \frac{4}{5} \right)$

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