Basic Electricity 2, WASSCE (SC), 2016

Question 2

;

 Figure 1 is a series RLC circuit. Calculate the:

(i) impedance of the circuit;

(ii) total current;

(iii) phase angle.

Observation

 The expected answers were;

(i)        Impedance:        
                                                                
                                                                  
                                                                 

                                               

 

 

(ii)       Total current (I)                                   
                                                           

    

= 47.34A

 

(iii)     Phase angle   = Cos-1 of power factor

 

This question is on a series RLC circuit. Candidates performed well in this question.