An inductor of inductive reactance 50ohm and a 50ohm resistor are connected in series with 220V ,50Hz source . What is the ratio of the voltage across the resistor to the source voltage

Dear Student,
                         Impedence of the circuit(Z) =R2+(XL)2So current in the circuit i=220Zand voltage across R=iRRatio ofVoltage across R to  Input voltage   =iR220=220R2+(XL)2R220=RR2+(XL)2=50502+502=12
Regards

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