(d) $Z = \sqrt{R^{2} + \left( X_{L} - X_{C} \right)^{2}} = \sqrt{(11)^{2} + (25 - 18)^{2}} = 13\ \Omega$ Current $i = \frac{260}{13} = 20\ A$
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.