railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrician and Wireman Electrical Networks Alternating Current
The power factor is defined as the ratio-
1
\(\cos \theta = \frac{{True\;power}}{{Apparent\;power}}\)
2
\(\cos \theta = \frac{{Apparent\;power}}{{True\;power}}\)
3
\(\cos \theta = \frac{{True\;power}}{{Reactive\;power}}\)
4
\(\cos \theta = \frac{{Apparent\;power}}{{Reactive\;power}}\)