MCQ
In an $AC$ circuit, the impedance is $3$ times the reactance, then the phase angle is.
- A$60^\circ $
- B$30^\circ$
- Czero
- ✓none of these
✓
Answer
Correct option: D.
none of these
$\sin\phi=\frac{\text{X}}{\text{Z}}=\frac{1}{\sqrt{3}}$
$\therefore\phi=\sin^{-1}\Big(\frac{1}{\sqrt{3}}\Big)$
$\therefore\phi=\sin^{-1}\Big(\frac{1}{\sqrt{3}}\Big)$
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