<p>An LCR-series circuit with L = 100 kH, C = 100&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>&#956;</mi><mi>F</mi></math>, R = 120<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>&#937;</mi></math>&nbsp;is connected to an a.c. source of emf&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>&#949;</mi><mo>&#160;</mo></math>&nbsp;= 30 sin 100t volt. Find the impedance, peak current and resonant frequency of the circuit.</p>