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An electric iron has a rating 750 W,220V. Calculate i) the current passing through it ii) its resistance when in use

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[tex]I=\frac{P}{U}=\frac{750}{220}\approx 3.4 A\\
R=\frac{U}{I}=\frac{220}{3.4}\approx54.7 \Omega[/tex]

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