Physics Electromagnetic Oscillations and Alternating Current AC Voltage Applied to a Series LCR Circuit
An a.c. circuit contains a 4 Ω resistance wire in series with an inductance coil of reactance 3 Ω. The impedance of the circuit is:
1
7 Ω
2
5 Ω
3
1 Ω
4
4/3 Ω