Electrical Engineering - RL Circuits - Discussion
Discussion Forum : RL Circuits - General Questions (Q.No. 7)
                   
                                       
                                7.
When the frequency is decreased, the impedance of a parallel RL circuit
 
                                    Discussion:
8 comments Page 1 of 1.
                
                        Raju saikh said: 
                         
                        1 decade ago
                
                As impidence(X) directly propotional to the frequency,
so, with decreses of frequency , impidence decreses
                so, with decreses of frequency , impidence decreses
                     (1)
                
            
                        Infy said: 
                         
                        1 decade ago
                
                Impedence of parallel circuit is Xl = 2piefl.
directly porpotainal to Frequency.
As frequency decreses impedence decerases
                directly porpotainal to Frequency.
As frequency decreses impedence decerases
                        Akhil said: 
                         
                        1 decade ago
                
                R in parallel with XL so total value of Z but frequency only depend on XL that is decreases.
                
                        Sarao said: 
                         
                        10 years ago
                
                Why we take XL and not XC please explain me?
                
                        Subin said: 
                         
                        9 years ago
                
                XC is capacitive reactance. XL is inductive reactance.
Parallel RL circuit has inductive reactance not capacitive.
                Parallel RL circuit has inductive reactance not capacitive.
                        Prasad hajare said: 
                         
                        8 years ago
                
                Solve it by using parallel combination of r and xl you will get answer, which is decrease.
                
                        Jhosaaguilar said: 
                         
                        8 years ago
                
                In parallel RL circuit, try to solve first the value of admittance (Y) =sqrt ( (1/R) ^2+ (1/XL) ^2) ; XL=2*pi*f*L, meaning, when f (frequency) decreased. Your Y increased. And remember that impedance (Z) is inversely proportional to Y. Z=1/Y.
                
                        Sharan said: 
                         
                        8 years ago
                
                Well explained @Jhosaaguilar.
                Post your comments here:
 
            
        Quick links
                            Quantitative Aptitude
                                    
                                    Verbal (English)
                                    
                                    Reasoning
                                    
                                Programming
                                    
                                    Interview
                                    
                                     Placement Papers