Electrical Engineering - RL Circuits - Discussion
Discussion Forum : RL Circuits - True or False (Q.No. 5)
                   
                                       
                                5.
A power factor of 1 indicates a purely reactive circuit, and a power factor of 0 indicates a purely resistive circuit.
 
                                    Discussion:
4 comments Page 1 of 1.
                
                        Joesmart said: 
                         
                        3 years ago
                
                pf of 1 means purely resistive.
pf of 0 means purely reactive.
So, pf = R/Z.
                pf of 0 means purely reactive.
So, pf = R/Z.
                        Bhuvana said: 
                         
                        1 decade ago
                
                Power factor is 1 when the circuit is resistive.
                
                        Nikita Reddy said: 
                         
                        1 decade ago
                
                Atan(X/R)=Atan(0/R) since for a pure resistive ckt X=0. 
Therefore Atan@=0 => @=0
power factor,cos@=cos(0)=1
Therefore power factor of resistive ckt is 1.
Similar analysis is done for pure inductive ckt.
                Therefore Atan@=0 => @=0
power factor,cos@=cos(0)=1
Therefore power factor of resistive ckt is 1.
Similar analysis is done for pure inductive ckt.
                        Nikita Reddy said: 
                         
                        1 decade ago
                
                For a pure resistive circuit power factor is 1.
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