What current does it take if connected to the correct voltage?

Posted on 2013-12-05 13:54:00 in Engineering by TOBY

An electric iron is marked 250 V, 500W. what current does it take if connected to the correct voltage? If the iron is used for one hour daily for 30 days in a month, what will be the monthly bill at 25 paise per unit ? How does the cost get effected if the voltage is only 200 V instead of 250 V ?

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