# Solved Problems-2

Problems-2

**A series**Î©

*RLC*circuit has the values:*R*= 100**,**

*L*= 0.02 H,*C*= 0.02 ÂµF. Calculate frequency of resonance. A variable frequency sinusoidal voltage of value 50V is applied to the circuit. Find the frequency at which voltage across*L*and*C*is the maximum. Also calculate voltage across*L*and*C*at frequency of resonance. Find the maximum current in the circuit.Solution

Here,

*R*= 100 Î©,*L*= 0.02 H,*C*= 0.02 Î¼F.âˆ´ Resonant frequency,

The frequency at which voltage across

*C*is the maximum is given by,The frequency at which voltage across

*L*is the maximum is given by,*f*=

_{L}=

Voltage across the inductance or the capacitance at resonance is,

=

âˆ´

*V*=_{L}âˆ´ VC =

The maximum current in the circuit is given by,