Physics Electromagnetic Oscillations and Alternating Current AC Voltage Applied to a Series LCR Circuit
An e.m.f. E = 4 cos(1000t) volt is applied to an LR circuit of inductance 3 mH and resistance 4 Ω. The maximum current in the circuit is
1
\(\frac{4}{\sqrt{7}}\) A
2
1.0 A
3
\(\frac{4}{7}\) A
4
0.8 A