railway RRB Technician Grade 1 Mock Test 2024 Physics Electromagnetic Oscillations and Alternating Current Alternating Current
The average e.m.f. during the positive half cycle of an A.C. supply of peak value E0 is:
1
\(\frac{E_0}{\pi}\)
2
\(\frac{E_0}{{\sqrt2}\pi}\)
3
\(\frac{E_0}{2\pi}\)
4
\(\frac{2E_0}{\pi}\)