To study the resonance condition of a series LCR circuit
                    1.What is the resonance condition for the series LCR circuit?
                  
                  
                  
                
                  
                    2.What is the impedance of the series LCR circuit?
                  
                  
                  
                
                  
                    3.What is the unit of impedence?
                  
                  
                  
               