Question

An ac series circuit contains a 4 resistance and a 3 inductive reactance. what is the impedance of the circuit?

Answer 1

impedance (Z)

$z \: = \sqrt{ {r}^{2} + ({wl})^{2} } = \sqrt{16 + 9} = \sqrt{25} = 5 \: ohm$


so impedance = 5 ohm