A series AC circuit has a resistance of 4Ω and a reactance of 3Ω.
A series AC circuit has a resistance of 4Ω and a reactance of 3Ω. The impedance of the circuit is
(a) 5Ω
(b) 7Ω
(c) 12/7Ω
(d) 7/12Ω.
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