MCQ
The power factor of a good choke coil is
- ✓Nearly zero
- BExactly zero
- CNearly one
- DExactly one
✓
Answer
Correct option: A.
Nearly zero
a
(a)$\cos \phi = \frac{R}{Z}$. In choke coil $\phi \approx 90^\circ $so $\cos \phi \approx 0$
(a)$\cos \phi = \frac{R}{Z}$. In choke coil $\phi \approx 90^\circ $so $\cos \phi \approx 0$
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