<p>A capacitor, resistor of 5<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>&#937;</mi></math>&nbsp;and an inductor of 50 mH are in series with an a.c. source marked 100V, 50 Hz. It is found that voltage is in phase with the current. Calculate the capacitance of the capacitor and the impedance of the circuit.</p>