First slide

Phasors and Phasor Diagrams

Question

If an $8 Ω$ resistance and $6 Ω$ reactance are present in an AC series circuit, then the impedance of the circuit will be

Easy

A

20 ohm
B

5 ohm
C

10 ohm
D

$14 \sqrt{2} ohm$

Solution

$Impedance, Z = \sqrt{R^{2} + X^{2}} = \sqrt{(8)^{2} + (6)^{2}} = 10 Ω$

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