Q. If an $8\ \Omega$ resistance and $6\ \Omega$ reactance are present in an ac series circuit then the impedance of the circuit will be
A) 20 $ohm$
B) 5 $ohm$
C) 10 $ohm$
D) $14\sqrt{2}\ ohm$
Explanation
(c) Impedance $Z = \sqrt{R^{2} + X^{2}} = \sqrt{(8)^{2} + (6)^{2}} = 10\Omega$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.