| The following circuit is usually used as a 
                    voltage divider.    
                      
                        
                        Figure 1: Voltage 
                        divider. 
                          | 
                           |    
                      
                        | rr1 = 1k    | [ ] | first resistance  |  
                        | rr2 = 2k    | [ ] | second resistance  |  The electrical voltage exciting the circuit 
                    is E1 = 12sin(10t).  
                      
                      Compute electrical current in the circuit, 
                      and electrical voltage across R2. 
                      Using a voltage indicator test the 
                      capability of the circuit to ``divide'' electrical 
                      voltage. 
                      Verify validity of the voltage Kirchhof's 
                      law in the circuit.  |