Electrical Engineering - RL Circuits - Discussion
Discussion Forum : RL Circuits - General Questions (Q.No. 5)
                   
                                       
                                5.
A 470 
 resistor and a coil with 125 
 inductive reactance are in parallel. Both components are across a 15 V ac voltage source. Current through the inductor is
 
                                    
 resistor and a coil with 125 
 inductive reactance are in parallel. Both components are across a 15 V ac voltage source. Current through the inductor isDiscussion:
13 comments Page 2 of 2.
                
                        Supriyo kumar said: 
                         
                        9 years ago
                
                Since it is voltage source is parallel to both resistances.
So, In parallel circuit v1=v2=v3=v.
Current in inductor, I = V/R =15/125 = 120 mA.
                So, In parallel circuit v1=v2=v3=v.
Current in inductor, I = V/R =15/125 = 120 mA.
                        Mohsin said: 
                         
                        7 years ago
                
                You can't just simply calculate Req like 2 resistors in parallel, proper impedance have to be calculated for parallel RL circuit. 
I = V/Z.
Z= 1/*(1/R)^2+(1/XL)^2.
                I = V/Z.
Z= 1/*(1/R)^2+(1/XL)^2.
                        Javed said: 
                         
                        5 years ago
                
                I = V/R.  
I = 12/125 = 0.12,
0.12 * 10^2,
0.12 * 1000 = 120mA.
                I = 12/125 = 0.12,
0.12 * 10^2,
0.12 * 1000 = 120mA.
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