Using a variable frequency a.c. voltage source the maximum current measured in the given LCR circuit is \( 50 \, \text{mA} \) for \( V = 5 \sin(100 t) \). The values of \( L \) and \( R \) are shown in the figure. The capacitance of the capacitor \( (C) \) used is ______ \( \mu\text{F} \).
