Electrical Engineering - Circuit Theorems in AC Analysis - Discussion
Discussion Forum : Circuit Theorems in AC Analysis - General Questions (Q.No. 17)
                   
                                       
                                17.
Referring to the given circuit, how much power, in watts, is delivered to the speaker at the determined frequency if VS = 4.5 VRMS?

 
                                    
Discussion:
4 comments Page 1 of 1.
                
                        Miles D Abarquez said: 
                         
                        2 years ago
                
                Ieq = Vs/Req.
= 4.5/(12+12)
= 0.1875 A.
P = I^2 Rw.
= (0.1875)^2 (12).
= 422 mW.
                = 4.5/(12+12)
= 0.1875 A.
P = I^2 Rw.
= (0.1875)^2 (12).
= 422 mW.
                        Rupesh said: 
                         
                        9 years ago
                
                Eth = 4.5 Volts.
Rth = 12ohms.
P max= Eth2/4Rth = 4.5^2/ (4*12) = 0.422 W = 422mW.
                Rth = 12ohms.
P max= Eth2/4Rth = 4.5^2/ (4*12) = 0.422 W = 422mW.
                        Priya said: 
                         
                        9 years ago
                
                Please anyone explain the answer.
                
                        Gsr said: 
                         
                        1 decade ago
                
                Can anyone explain the method of the answer?
                Post your comments here:
 
            
        Quick links
                            Quantitative Aptitude
                                    
                                    Verbal (English)
                                    
                                    Reasoning
                                    
                                Programming
                                    
                                    Interview
                                    
                                     Placement Papers