engineering recuitment JKSSB JE Mock Test 2025 Power Systems Transmission and Distribution Distribution Systems
What is the ratio of copper required for 4-wire 2-phase ac system to an equivalent 2-wire DC system?
1
\(\frac{1}{{2{{\cos }^2}\theta }}\)
2
cos2 θ
3
2cos2 θ
4
\(\frac{2}{{{{\cos }^2}\theta }}\)