In an $A.C.$ circuit,the reactance of a coil is $\sqrt{3}$ times its resistance. The phase difference between the voltage across the coil and the current through the coil will be
- A$\tan^{-1}(0)$
- B$\tan^{-1} \left(\frac{1}{\sqrt{3}}\right)$
- C$\tan^{-1}(1)$
- D$\tan^{-1}(\sqrt{3})$
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