A coil of inductance 0.50h and resistance 100 ohm is connected to a 240v , 50hz if the resistance of the coil is zero then what will be the power dissipated in the coil
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Inductunce(L)=0.5H
residence(R)=100
voltage(verm)=240v
frequency(F)=50hz
impedance(z)=√R²+x²
=√R²+(WL)
=√R²+(2nfL)²
peak value of current io= vo/z
=vrms√2/√R²+(2nfL)²
io=240√2/100²+(2n*50*0.5)²
=1.8
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